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VERSATILE INPUT OUTPUT MODULE USER MANUAL

1. Short Message Return Q Default N A Example XB5 will turn Output 5 off Command Read Output state Form XC 1 32 Description Reads the state of the Output Main Description 7 5 Reading Single Output Long Message Return Output followed by the Output number followed by one of Inactive Recognition Period On Period Off Period Wait Reset Short Message Return O Inactive 1 Recognition Period 2 On Period 3 Off Period 4 Wait Reset Default N A Example XC5 will return the state of Output 5 Command Set Virtual Output without return messages Form Y 16 1o0r0 where 16 10r0 is a series of 1s and Os which define the state of the 16 Virtual Outputs Description This command will set the state of all 16 Virtual Outputs with a single command All 16 Virtual Outputs must be set at the same time otherwise it will not be acted upon Main Description 8 3 Writing to multiple Outputs Long Message Return None Short Message Return None Default N A Example Y1110000000000000 will set Virtual Outputs 1 2 and 3 and clear all others Command Set Virtual Outputs with return messages Form Y 16 1o0r0 where 16 10r0 is a series of 1s and Os which define the state of the 16 Virtual Outputs Description This command will set the state of all 16 Virtual Outputs with a single command All 16 Virtual Outputs must be set at the same time otherwise
2. Output followed by input number Uses Inverted Inputs followed by a list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with None Short Message Return A list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with N Default No Inputs are inverted Example RO9P Will read the inverting Inputs of Real Output 9 Command Read Output Reset Time Form RO 1 32 S Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Reads the Reset Time for a single Output Main Description 4 14 Reset Period Long Message Return Output followed by input number Reset Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 20 Example RO16S Will read the Reset Time of Output 16 Command Read Output Reset Units Form RO 1 16 T Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Reads the Reset Units for a single Output These can be 10mS 100mS 1 Second 1 Minute 1 hour or 1 Day Main Description 4 15 Reset Units Long Message Return Output followed by input number Reset Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days
3. 3 Controlled by Serial Port Default Controlled by Inputs Example WO11N1 Output 11 will be controlled by Inputs Command Add an Input on to the Invert map Form RO 1 32 P 1 16 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 1 16 is the Input number Description Inputs on each Output Real and Virtual may be inverted This command will add an Input to the list of Inputs which are inverted for use with an Output Main Description 4 13 Inputs on Invert map Long Message Return Output followed by input number Uses Inverted Inputs followed by a list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with None Short Message Return A list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with N Default No Inputs are inverted Example WO9P6 Input 6 will be inverted when used by Real Output 9 Command Delete an Input on to the Invert map Form WO 1 32 Q 1 16 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 1 16 is the Input number Description Inputs on each Output Real and Virtual may be inverted This command will remove an Input from the list of Inputs which are inverted for use with an Output Main Description 4 13 Inputs on Invert map Long Message Return Output followed by input number Uses
4. Parity None Stop Bits 1 Flow Control None Press OK to return to the File Properties dialog Go to the Settings Tab and set the following Function arrow and ctrl keys act as Terminal keys Backspace key sends Cntrl H Emulation ANSI TELNET Terminal ANSI Press ASCII Set up button Check the Send line ends with line feeds box Check the Wrap lines that exceed terminal width box Set Line delay to 0 Set Character delay to 0 Other boxes should not be checked Press OK to return to the File Properties dialog Press OK to return to the main screen Save the new settings Hyper Terminal is now set up 10 COMMANDS 10 1 General Commands are used to control and interrogate the module All commands and data are passed through the Serial Port Generally commands fall into three categories 1 Those used to read or write parameters which affect the operation of the module 2 Those used customise the user interface of the module 3 Those used to monitor Inputs or directly control Outputs All commands are single line instructions and must be terminated with a carriage return and line feed If HyperTerminal is being used the carriage returns and line feeds can be inserted automatically when the return or enter key is pressed If a file is down loaded then again the carriage returns and line feeds will be automatically generated If there is any difficulty then you can use lt
5. If Active High Input followed by input number is Active High If Active Low Input followed by input number is Active Low Short Message Return 0 Active Low 1 Active High Default Active Low Example WI7H1 Input 7 will be active high Command Write Input latched not latched Form WI 1 16 K 0 1 Where 1 16 is the input number 0 1 indicates latched 1 or not latched 0 Description Inputs may be designated as latched i e once in the active state they remain active irrespective of the state of that Input This command writes the latched not latched designation Main Description 5 7 Input latched not latched Long Message Return If latched Input followed by input number Latched If not latched Input followed by input number Not Latched Short Message Return 0 not latched 1 latched Default Not Latched Example WI13K0 Input 13 will not latch Command Reset Input Form WI 1 16 U Where 1 16 is the Input number Description Inputs may be designated as latched i e once in the active state they remain active irrespective of the state of that Input This command will reset the specified Input Main Description 5 7 Input latched not latched Long Message Return Input followed by input number Reset Short Message Return the number of the Input unlatched Default N A Example WI4U will rese
6. Short Message Return A list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with N Default Outputs 1 to 16 are controlled by a single Input The number of the Input is the same as the Output number i e Output 1 is controlled by Input 1 Output 2 is controlled by Input 2 etc Outputs 17 to 32 are controlled by a single Input The number of the Input is the 16 less than the Output number i e Output 17 is controlled by Input 1 Output 18 is controlled by Input 2 etc Example WO17L5 Input 5 will be added to the list of Inputs controlling Output 17 Command Delete Inputs on to the Output map Form WO 1 32 M 1 32 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 1 32 is the Input number 0 to 16 Real Inputs 17 to 32 Virtual Inputs Description Each Output Real and Virtual may be controlled by a number of Inputs This command will delete an Input from the list or map which controls an Output Main Description 4 12 Inputs on output map Long Message Return Output followed by input number is Controlled by Inputs followed by a list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with None Short Message Return A list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with N Default Outputs 1 to 16 ar
7. or use the command WI Output Number U via the Serial Port Any Real input may be used as the reset If input O is specified as input reset then none will be used The parameter can be changed using the command WI Output NumbenG followed by the number of the input to be used as the reset The parameter can be read using the command RI Output NumbenG The default for all outputs is that no input is specified 5 6 Input Active low high Each input is interfaced with the outside world so that a switch can be connected between its terminal an 0 volts and it would be normal to suppose that the input should be defined as active when the switch is made However the input may be connected to a variety of other active sources and the definition of what level is active may vary If we want to define the input as being active when either it is open circuit or high then the input will be active high Conversely if we want to define the input as being active when either it is closed circuit or low then the input will be active low The parameter can be changed using the command WI Output NumbenH followed by either a 1 active high or a 0 active low The parameter can be read using the command RI Output NumbenH The default for all inputs is active low 5 7 Input latched not latched Inputs may be either latched or not latched If this parameter is set to non latch the input will become active when the input condition is satisfied Once the
8. 10 1 General 10 2 Command Details 1 INTRODUCTION The VIOM module physically consists of 16 inputs 16 outputs and a Serial Port Internally there are also 16 Virtual outputs which may be used as Virtual inputs and eight 32 bit Timer Counters Outputs may be controlled by combinations of inputs by the Timer Counters or via the Serial Port Once the outputs have been activated various parameters may be assigned to control their behaviour Additional modules are available which can be used as interface elements 2 HARDWARE 2 1 General The following diagram shows the location of the major components of VIOM The Serial Port should be connected to the host via a Null Modem lead No handshaking is used O Ulp Uls 9 veh The inputs and outputs are available via screw terminals or a 10 way headers The headers also have power pins so that auxiliary modules can be powered directly from VIOM Each of the headers has the same pin assignment regardless of whether they are inputs or outputs The following diagram shows the pin arrangement 1 9 2 2 VIOM Inputs VIOM has 16 inputs Each has a 10Kohm pull up resistor to 5 Volts and a 100Kohm resistor feeding into a CMOS input This type of input can be used with TTL CMOS or clean contacts such as relays or switches Care should be taken to prevent excessive voltage on any of these inputs A 1k n woarn TS SMOS INPUT eI bio 2 3 VIOM Outputs The VIOM module h
9. CTRL M gt followed by lt CTRL J gt None of the commands are case sensitive In this manual the convention used has been to use upper case characters for the commands however any mixture may be used For example CMS can be cms or cMs Most commands will respond with a return message the form of which will depend not only on the command but on what form of return messages have been selected If Long Messages have been selected the return message will generally be in the form of plain language text Short Messages will generally only return the current value of the parameter concerned or a simple one character acknowledgement As with the command format all return messages are terminated with a carriage return and line feed If a message is received by the module which is not understood then an error message will be returned If Long Messages have been selected the error message will be plain text and will indicate the nature of the problem Short Messages will generally only return an E As well as requesting or writing a single parameter to a single input output or Timer Counter it is also possible to read and write multiple parameters To read multiple parameters look for commands starting with the letter D To upload a the same parameter to all outputs look for the commands starting with the letter U Commands may be manually input using a terminal program such as HyperTerminal or downloaded in
10. Default 100mS Example RO7T will return the Reset Units of Output 7 Command Read Output One Shot Mode Form RO 1 32 W Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description This command will read if the Output is in One Shot mode or Normal mode Main Description 4 16 One Shot Long Message Return If in Normal mode Output followed by input number is in Normal Mode If in One Shot mode Output followed by input number One Shot Mode Short Message Return 1 One Shot mode 0 Normal mode Default Normal mode Example RO3W Will return the mode for Output 3 Command Read Input to control Timer Counter Form RT 1 8 A Where 1 8 is the Timer Counter number Description This command will read the Input which controls a Timer Counter Main Description 6 2 Input to control Timer Counter Long Message Return If a controlling Input has been allocated Timer Counter followed by Timer Counter number is controlled by input followed by the controlling Input number in the range 1 to 32 If a controlling Input has not been allocated Timer Counter followed by Timer Counter number is controlled by input followed by None Short Message Return 0 No controlling Input has been allocated 1 to 32 the number of the controlling Input Default None allocated Example RT1A_ Will read the controlling Input of
11. Inverted Inputs followed by a list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with None Short Message Return A list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with N Default No Inputs are inverted Example WO9P6 Input 6 will not be inverted when used by Real Output 9 Command Write Output Reset Time Form WO 1 32 S 0 255 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 0 255 is the new value Description Writes the Reset Time for a single Output The written value must be in the range 0 to 255 Main Description 4 14 Reset Period Long Message Return Output followed by input number Reset Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 20 Example WO0O16S10 The Reset Time of Output 16 will be 10 Command Write Output Reset Units Form WO 1 16 T 0 5 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 0 5 represent the Output Recognition Units Description Writes the Reset Units for a single Output These can be 0 10mS 1 100mS 2 Seconds 3 Minutes 4 Hours or 5 Days Main Description 4 15 Reset Units Long Message Return Output followed by input number Reset Units are followed by the units Short Messag
12. Short Message Return N 32 times once for each Output Default N A Command Clears all Timer Counters Form UTF Description This command will clear all Timer Counter registers Main Description 6 TIMER COUNTERS Long Message Return Timer Counter followed by Timer Counter number Reset This message is repeated 8 times once for each Timer Counter Short Message Return A 8 times once for each Timer Counter Default N A Command Turn Output On Form XA 1 32 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Turn an individual output on NOTE The Output must be allocated to be controlled by the Serial Port using the command WO 1 32 N3 otherwise an error message will be returned Main Description 8 2 Writing to a single Output Long Message Return Output followed by the Output number On Period Short Message Return oO Default N A Example XA5 will turn Output 5 on Command Turn Output Off Form XB 1 32 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Turn an individual output off NOTE The Output must be allocated to be controlled by the Serial Port using the command WO 1 32 N3 otherwise an error message will be returned Main Description 8 2 Writing to a single Output Long Message Return Output followed by the Output number Inactive
13. The following diagram shows a typical relationship between the input condition and the output over time Note that during the recognition period the output will be off Inputs Relationship between Inputs and Outputs Of course the outputs do not always have to be cyclical They can be programmed to stay on permanently or to turn on once and then stay permanently off All these options are detailed in the following sections 4 2 Recognition Period This parameter is only used when the output is controlled by inputs When the output is controlled by either the Timer Counters or the Serial Port the recognition period is ignored This parameter is only used by Real outputs Virtual outputs will return an error message if they are programmed with a value Outputs may be controlled by a combination of inputs Once this combination becomes true then the output will become active However it is possible to prevent the output from turning on immediately by specifying a recognition period This period is the time from when the input combination becomes true to the point at which the output first turns on Any period between 1 and 255 may be specified and this value in conjunction with the recognition units will define the total time If a value of 1 is chosen then the output will be turned on immediately The actual value of the recognition time will have an accuracy of or 1 unit and it is therefore important to choose the value of the perio
14. Timer Counter 1 Command Read Timer Counter Output Form RT 1 8 B Where 1 8 is the Timer Counter number Description Each Timer Counter can control a single Output The Output is active when the value in the Timer Counter exceeds that in the Timer Counter comparator This command will read the controlled Output Note that the Output will not be activated if the source of control is not set to 2 using the command WO 1 32 N2 Main Description 6 3 Timer Counter output Long Message Return If a controlled Output has been allocated Timer Counter followed by Timer Counter number controls output followed by the controlled Output number in the range 1 to 32 If a controlling Input has not been allocated Timer Counter followed by Timer Counter number controls output followed by None Short Message Return 0 No controlled Output has been allocated 1 to 32 the number of the controlled Output Default None allocated Example RT5B Will read the Output which is controlled by Timer Counter 5 Command Read Timer Counter mode Form RT 1 8 C Where 1 8 is the Timer Counter number Description Each Timer Counter can be assigned as either a counter or timer This command reads the mode of the Timer Counter Main Description 6 4 Timer Counter mode Long Message Return If the Timer Counter is in counter mode Timer Counter followed by Tim
15. Timer Counters is to accumulate time 6 6 Timer Counter compare Level As each Timer Counter is incremented its value is compared with a level specified in the Timer Counter comparator An output can be designated to be activated while the value in the Timer Counter register exceeds that in the Timer Counter comparator The size of the Timer Counter comparator is 32 bits and so it can be set to any value which is also valid for the Timer Counter register The parameter can be changed using the command WT Timer Counter NumbenE followed by the value to be place in the Timer Counter comparator The parameter can be read using the command RT Timer Counter NumbeneE The default for all Timer Counters is 0 6 7 Read Timer Counter The value contained in the Timer Counter register may be read using the command RT Timer Counter NumbenG In timer mode the value returned will be the time in milliseconds In counter mode the value returned will be the count 6 8 Clearing Timer Counter The Timer Counter register may be cleared to zero by using the command WT Timer Counter Number F via the Serial Port or an input may be designated as a reset The command to set a reset input is WT Timer Counter NumbenJ followed by the number of the input to be used as a reset If the numer is set to zero then no inputs will be used to reset the Timer Counter The reset input can be read using the command RT Timer Coun
16. Where 1 16 is the Output number 0 5 represent the Output Recognition Units Description Writes the Off Units for a single Output These can be 0 10mS 1 100mS 2 Seconds 3 Minutes 4 Hours or 5 Days Main Description 4 7 Off Time Units Long Message Return Output followed by input number Off Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days Default 100mS Example WO7D5 The Off Units of Output 7 will be Days Command Write Input used as Reset Form WO 1 32 G 0 16 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 0 16 is the Input used to reset the Output Description Outputs may be designated as latched i e once in the active state they remain active irrespective of the state of the Inputs In this mode an Input may be used to reset the Output This command writes the Input used as Reset Main Description 4 8 Input used as Reset Long Message Return If the Output has a designated Reset Input Output followed by Output number resets using input followed by the Input used as a reset signal If the Output does not have designated Reset input Output followed by input number has no reset input Short Message Return A number in the range 0 to 16 where 0 indicates no Reset Input has been designated 1 to 16 i
17. batches from a text file If downloading from a text file it is essential to use the command FDL at the start of the download If manually typing in commands it is possible to use the back delete key 10 2 Command Details Command Comment Form lt Description Any line which starts with lt is ignored This is useful for commenting text files Main Description 3 4 Comments Long Message Return None Short Message Return None Default N A Command Write Error Message Prefix with character Form CEA char where char is the character which is to prefix the message Description Error messages may be prefixed with a character so that they may be differentiated from information type messages The prefix is applied to both long and short messages This command will write the prefix to be used with Error Messages Main Description 3 5 Error Message Prefix Long Message Return Error Message Prefix followed by the character assigned Short Message Return The character assigned Default No prefix Example CEA lt Prefix Error Messages with the character lt Command Read Prefix of Error Messages Form CER Description Error messages may be prefixed with a character so that they may be differentiated from information type messages The prefix is applied to both long and short messages This command will read the prefix assigned to Error Messages Main Description 3 5 Error Message Prefix
18. cycle Note that these commands will return the current status of the output The logic level of the output will be determined by the active high active low parameter 8 WRITING DATA 8 1 General All outputs Real and Virtual can be addressed either individually or collectively In all cases the output must first be assigned to the Serial Port using the command WO Output N3 Note that the default control for all outputs is by inputs therefore if working from the defaults it will be necessary to issue this command before successfully writing to an output 8 2 Writing to a single Output All Real and Virtual outputs can be controlled from the host via the Serial Port Outputs may be controlled from inputs Timer Counters or from the Serial Port In order that control be effected from the Serial Port use the command WO Output N3 Single outputs can be activated using the command XA followed by the number of the output to be activated Real outputs use the range 1 to 16 while the Virtual outputs use the range 17 to 32 to deactivate the output use the command XB followed by the number of the output to be deactivated Note that the logic level of the output will be determined not only by the write command but also by the active high active low parameter 8 3 Writing to multiple Outputs All Real and Virtual outputs can be controlled from the host via the Serial Port Outputs may be controlled from inputs Timer Counters or from the Seri
19. not latched status Main Description 4 11 latched not latched Long Message Return If latched Output followed by input number Latched If not latched Output followed by input number Not Latched Short Message Return 0 not latched 1 latched Default Not Latched Example RO11K Will return the latched not latched status of Output 11 Command Read Inputs on Output map Form RO 1 32 L or RO 1 32 M Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Each Output Real and Virtual may be controlled by a number of Inputs This command will read the Inputs which contro an Output Main Description 4 12 Inputs on output map Long Message Return Output followed by input number is Controlled by Inputs followed by a list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with None Short Message Return A list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with N Default Outputs 1 to 16 are controlled by a single Input The number of the Input is the same as the Output number i e Output 1 is controlled by Input 1 Output 2 is controlled by Input 2 etc Outputs 17 to 32 are controlled by a single Input The number of the Input is the 16 less than the Output number i e Output 17 is controlled by Input 1 Outp
20. number in the range 0 to 255 Default 10 Example WI5A55 Will assign the Recognition Time of 55 to Input 5 Command Write Input Recognition Units Form WI 1 16 B 0 5 Where 1 16 is the input number 0 6 represent the Input Recognition Units Description Writes the Recognition Units for a single Input These can be 0 10mS 1 100mS 2 Seconds 3 Minutes 4 Hours or 5 Days Main Description 5 3 Recognition Units Long Message Return Input followed by input number Recognition Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minutes 4 Hours 5 Days Default 10mS Example WI1B2 Will assign Seconds as the Recognition Units of Input 1 Command Write Anti Bounce on off Form WI 1 16 C 0 1 Where 1 16 is the input number 0 1 is the new Anti Bounce on off status Description Writes if the Input has Anti Bounce enabled A 1 enables the Anti Bounce processing while O disables it Main Description 5 4 AntiBounce Long Message Return Input followed by input number Antibounce is followed by the either On or Off Short Message Return Either 1 Anti Bounce enabled or 0 Anti Bounce disabled Default Anti Bounce enabled Example WI12C1 Will enable the Anti Bounce processing of Input 12 Command Write Input used as Reset Form WI 1 1
21. used as Reset H Output Active low high J Output uses AND OR of map K Output latched not latched L Inputs on output map M Inputs on output map N Output is controlled by 1 Inputs 2 Timer Counter 3 RS232 P Inputs on Invert map Q Inputs on Invert map S Reset Time T Reset Units W Output One Shot Description The command will return the values of a particular parameter for all the Real Outputs and Virtual Outputs Some parameters are not applicable to Virtual Outputs in which case only the values for the Real outputs are returned Main Description 4 OUTPUTS Long Message Return Dependant on parameter See appropriate Read Command Short Message Return Dependant on parameter See appropriate Read Command Default N A Example DAS Will return the reset time for all outputs Command Download a Parameter for all Inputs Form DB A K where DB A k is A Recognition Time B Recognition Units C AntiBounce on off G Input used as Reset H Input Active low high K Input latched not latched Description The command will return the values of a particular parameter for all the Inputs Main Description 5 INPUTS Long Message Return Dependant on parameter See appropriate Read Command Short Message Return Dependant on parameter See appropriate Read Command Default N A Example DBA Will return the Recognition Time for all inputs Command Download a Parameter fo
22. 6 G 0 16 Where 1 16 is the Input number 0 16 is the Input to be used as the reset 0 means that no input should be assigned to this function Description Inputs may be designated as latched i e once in the active state they remain active irrespective of the state of that Input In this mode a second Input may be used to reset the latched Input This command writes the Input to be used as Reset If no reset is required then assign Input zero Otherwise the number should be in the range 1 to 16 Main Description 5 5 Input used as Reset Long Message Return If the Input has a designated Reset input Input followed by input number resets using input followed by the input used as a reset signal If the Input does not have designated Reset input Input followed by input number has no reset input Short Message Return A number in the range 0 to 16 where 0 indicates no Reset Input has been designated 1 to 16 indicates the number of the Reset Input Default No Reset Input is designated Example WI15G3 Will assign Input 3 as the Input which is used as a reset for Input 15 Command Write Input Active low high Form WI 1 16 H 0 1 Where 1 16 is the input number 0 1 indicates active high 1 or active low 0 Description Each Input can be designated as either Active High or Active Low This command writes the designation Main Description 5 6 Input Active low high Long Message Return
23. Active Low This command reads the designation Main Description 4 9 Active low high Long Message Return If Active High Output followed by input number is Active High If Active Low Output followed by input number is Active Low Short Message Return 0 Active Low 1 Active High Default Active Low Example RO2H Will return the Active Low Active High status of Output 2 Command Read Output uses AND OR of map Form RO 1 32 J Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Each Output is controlled by a number of Inputs To determine if the Output is active these Inputs may be ANDed or ORed This command reads the whether the Inputs are ANDed or Ored Main Description 4 10 AND OR of map Long Message Return If ORed Output followed by input number Inputs are ORed If ANDed Output followed by input number Inputs are ANDed Short Message Return 1 ORed 0 ANDed Default Ored Example RO8J Will return whether Output 8 has its Inputs ANDed or Ored Command Read Output latched not latched Form RO 1 16 K Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Outputs may be designated as latched i e once in the active state they remain active irrespective of the state of the controlling Inputs This command reads the latched
24. Long Message Return If no prefixes have been allocated Error Message Prefix None If prefix lt has been allocated Error Message Prefix lt Short Message Return Error Message Prefix Default N A Command Read State of Input Change Reporting Form CIC Description Input Change Reporting reads the state of each of the 16 Real Inputs and will issue a status message on the Serial Port each time a change occurs Main Description 7 3 Reporting Input Status on change Long Message Return Input Change Reporting is Off Input Change Reporting is On Short Message Return Q Off d On Default N A Command Write State of Input Change Reporting Form CIC 0 1 Description Input Change Reporting reads the state of each of the 16 Real Inputs and will issue a status message on the Serial Port each time a change occurs This command will set the will either enable 1 or disable 0 the function Main Description 7 3 Reporting Input Status on change Long Message Return Input Change Reporting is Off Input Change Reporting is On Short Message Return 0 Off 1 On Default Function disabled CICO Example CICO Input Change Reporting Disabled CIC1 Input Change Reporting Enabled Command Request State of Inputs Form CIN Description Requests the current state of the 16 Real inputs Main Description 7 2 Requesting Input Status Long Message Ret
25. Message Return Long Messages On Short Message Return N A Default Long messages Command Return to Defaults Form CPD Description Returns the programming to default conditions Main Description 3 6 Return to Defaults Long Message Return Wait Followed by Defaults Set Short Message Return N A default condition is Long Messages Default N A Command Request State of all Outputs Form COA Description Requests the current state of the 16 Real Outputs and the 16 Virtual Outputs Main Description 7 6 Reading Multiple Outputs Long Message Return Output followed by the output number followed by one of Inactive Active Recognition Period On Period Off Period Wait Reset Short Message Return A number in the range 0 to 4 where 0 Inactive 1 Recognition Period 2 On Time 3 Off Time 4 Wait Reset Default N A Command Request State of all Real Outputs Form COR Description Requests the current state of the 16 Real Outputs Main Description 7 6 Reading Multiple Outputs Long Message Return Output followed by the output number followed by one of Inactive Recognition Period On Period Off Period Wait Reset for each Real Output Short Message Return A number in the range 0 to 4 where 0 Inactive 1 Recognition Period 2 On Time 3 Off Time 4 Wait Reset for each Real Output Default N A Command Request State of all Output
26. Minute 4 Hours 5 Days The parameter can be read using the command RO Output Number F The default for all outputs is 100mS 4 8 Input used as Reset An output can be set to latch so that once the output becomes active it will remain active irrespective of the input conditions until it is reset There are two ways to reset an output either specify another input as a reset and when this becomes active the output will be deactivated or use the command WO Output NumbenU via the Serial Port Any Real input may be used as the reset However if an input used to activate an output is also used to reset the same output unpredictable operation will result If input 0 is specified as input reset then none will be used A reset input is still effective even if the output is not latched It will always over ride an active set of inputs to hold the output inactive The parameter can be changed using the command WO Outpout NumbenG followed by the number of the input to be used as the reset The parameter can be read using the command RO Output NumbenG The default for all outputs is that no input is specified 4 9 Active low high Each output is interfaced with an open collector driver The output transistor may be defined as either turned on or turned off when the output is active Active high is therefore defined as the output transistor is turned off when the output is active and active low is defined as the output transistor is turned o
27. Reads the period of Update Reporting of the state of the Real Inputs This can be off 100mS 1 Second 1 Minute 1 Hour or 1 Day Main Description 7 4 Regular Update Input Status reporting Long Message Return Input Reporting Period is followed by the period Short Message Return A number in the range 0 to 5 where 0 Off 1 100mS 2 1 Second 3 1 Minute 4 1 Hour 5 1 Day Command Write Input Reporting Period Form CIR 0 6 where the value 0 6 is 0 Off 1 100mS 2 1 Second 3 1 Minute 4 1 Hour 5 1 Day Description This command defines the period of Update Reporting of the state of the Real Inputs Main Description 7 4 Regular Update Input Status reporting Long Message Return Input Reporting Period is followed by the report period Followed by reports at the rate specified Short Message Return A number in the range 0 to 5 where 0 Off 1 100mS 2 1 Second 3 1 Minute 4 1 Hour 5 1 Day Followed by reports at the rate specified Default Input Reporting off Example CIR2 Set the Update Reporting period to 1 second Command Short messages Form CMS Description Sets the Message Mode to short messages Main Description 3 1 Message Types Long Message Return N A Short Message Return A Default Long messages Command Long Messages Form CML Description Sets the Message Mode to long messages Main Description 3 1 Message Types Long
28. Shot parameter is the relevant data Description The command will set the values of a particular parameter for all the Real Outputs and Virtual Outputs Some parameters are not applicable to Virtual Outputs in which case only the values for the Real outputs will be set Main Description 4 OUTPUTS Long Message Return Dependant on parameter See appropriate Read Command Short Message Return Dependant on parameter See appropriate Read Command Default N A Example DAS50 Will set the reset time to 50 for all outputs Command Clears all Inputs on Output Map Form UOM Description This command will clear all Inputs from all Output maps It is a useful command when downloading complex data as it ensures that there are no residual dependencies Main Description 4 OUTPUTS Long Message Return Output followed by the Output number is Controlled by Inputs None This message is repeated 32 times once for each Output Short Message Return N 32 times once for each Output Default N A Command Clears all Inputs on Invert Map Form UOQ Description This command will clear all inverted Inputs from all Output maps It is a useful command when downloading complex data as it ensures that there are no residual dependencies Main Description 4 OUTPUTS Long Message Return Output followed by input number Uses Inverted Inputs None This message is repeated 32 times once for each Output
29. VERSATILE INPUT OUTPUT MODULE USER MANUAL CONTENTS 1 INTRODUCTION 2 HARDWARE 2 1 General 2 2 VIOM Inputs 2 3 VIOM Outputs 2 4 VIOM Serial Port 2 5 VIOM Display 2 6 VIOM Relays 3 USER INTERFACE 3 1 Message Types 3 2 Return Echo 3 3 File Download 3 4 Comments 3 5 Error Message Prefix 3 6 Return to Defaults 3 7 Start Message 3 8 Reading the Software Version 4 OUTPUTS 4 1 General 4 2 Recognition Period 4 3 Recognition Units 4 4 On Period 4 5 On Time Units 4 6 Off Period 4 7 Off Time Units 4 8 Input used as Reset 4 9 Active low high 4 10 AND OR of map 4 11 latched not latched 4 12 Inputs on output map 4 13 Inputs on Invert map 4 14 Reset Period 4 15 Reset Units 4 16 One Shot 5 INPUTS 5 1 General 5 2 Recognition Time 5 3 Recognition Units 5 4 AntiBounce 5 5 Input used as Reset 5 6 Input Active low high 5 7 Input latched not latched 6 TIMER COUNTERS 6 1 General 6 2 Input to control Timer Counter 6 3 Timer Counter output 6 4 Timer Counter mode 6 5 Timer reset mode 6 6 Timer Counter compare Level 6 7 Read Timer Counter 6 8 Clearing Timer Counter 6 9 Decrementing the Counter 7 READING DATA 7 1 General 7 2 Requesting Input Status 7 3 Reporting Input Status on change 7 4 Regular Update Input Status reporting 7 5 Reading Single Output 7 6 Reading Multiple Outputs 8 WRITING DATA 8 1 General 8 2 Writing to a single Output 8 3 Writing to multiple Outputs 9 HYPERTERMINAL 10 COMMANDS
30. VIOM it can generate the start up message VIOM Started This message can be suppressed Main Description 3 7 Start Message Long Message Return Either Start Message is On or Start Message is Off Short Message Return 1 or 0 where 1 Start Message is generated 0 Start message is suppressed Default Start Message is generated Command Set the Start Message Status Form CSM 0 or 1 where 1 generates the start message on power on 0 suppresses the start message on power on Description When power is applied to VIOM it can generate the start up message VIOM Started This message can be suppressed with this command Main Description 3 7 Start Message Long Message Return Either Start Message is On or Start Message is Off Short Message Return or Q where 1 Start Message is generated 0 Start message is suppressed Default Start Message is generated Command Read Software Version Form CSV Description this command reads the current VIOM software version Main Description 3 8 Reading the Software Version Long Message Return Software Version followed by the software version Short Message Return software version Default N A Command Download a Parameter for all Outputs Form DA A W where A W is A Recognition Time B Recognition Units C On Time D On Time Units E Off Time F Off Time Units G Input
31. al Port In order that control be effected from the Serial Port use the command WO Outpu N3 When writing to multiple outputs they must be written in complete blocks either all Real outputs or all Virtual outputs If an output has not been assigned to the Serial Port then its level will not be affected when it is addressed Real outputs can be addressed by using the command ZA followed by a series of 1s and Os which represent the new output level where a 1 indicates that the output is to be active and a zero indicates that it is to be inactive Virtual outputs can be addressed by using the command YA followed by a series of 1s and Os which represent the new output level where a 1 indicates that the output is to be active and a zero indicates that it is to be inactive both of these commands will cause the VIOM to report back on the current output status This can be avoided by using the command prefix Z or Y instead of ZA or YA In this case no response will be generated by the VIOM Note that the logic level of the output will be determined not only by the write command but also by the active high active low parameter 9 HYPERTERMINAL If you are using HyperTerminal set it up as follows Go to File Properties Set the Connect using dialog to Direct to ComX where X is the Serial Port you are using Go to the Configure button and set the following Bits per second 9600 Data Bits 8
32. as 16 real outputs Each of these outputs consist of an open collector Darlington driver capable of sinking 100mA They are capable of driving light loads such as LEDs relays and small motors Maximum load voltage is 40 Volts Note that if these outputs are to drive inductive loads such as relays and motors then the load must have some form of back EMF suppression fitted IF SUPPRESSION IS NOT FITTED THEN THE OUTPUT DEVICE WILL BE DAMAGED The following diagram shows how to interface the VIOM output to a relay a 2 4 VIOM Serial Port The Serial Port is used to communicate with a host This host may be a PC but could also be any device capable of communicating with a VIOM The VIOM should be connected to the host with a null modem lead fitted with a 9 pin D connector This is a lead which has its RX and TX wires crossed over The VIOM does not support hardware handshaking and therefore requires only the Rx TX and ground wire connections Others if present will be ignored The serial protocol is 9600 baud 8 bits no parity and 1 stop bit 2 5 VIOM Display The VIOM display module consists of 8 LEDs which can be connected directly on to the VIOM controller Connection is via a ribbon cable to the output header If all 16 outputs are to be displayed then two VIOM Display modules will be required 2 6 VIOM Relays The VIOM Relay module consists of 8 single pole change over relays which can be connected directly on to t
33. by Real Input 3 Command Write Input to reset Timer Counter Form WT 1 8 J 0 32 Where 1 8 is the Timer Counter number 0 32 0 is no Input selected 1 to 16 is a Real Input and 17 to 32 is a Virtual Output Description This command will define the Input which resets a Timer Counter Main Description 6 8 Clearing a Timer Counter Long Message Return If an Input has been allocated Timer Counter followed by Timer Counter number is reset by input followed by the controlling Input number in the range 1 to 32 If an Input has not been allocated Timer Counter followed by Timer Counter number is reset by input followed by None Short Message Return 0 No reset Input has been allocated 1 to 32 the number of the reset Input Default None allocated Example WT1H3 Timer Counter 1 will be reset by Real Input 3 Command Write this parameter for all Outputs Form UA A W parameter where A W is A Recognition Time B Recognition Units C On Time D On Time Units E Off Time F Off Time Units G Input used as Reset H Output Active low high J Output uses AND OR of map K Output latched not latched L Add Input on to Output map M Delete Inputs from Output map N Output is controlled by 1 Inputs 2 Timer Counter 3 RS232 P Add Input on to Invert map Q Delete Input from Invert map S Reset Time T Reset Units W Output One
34. by input number Off Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days Default 100mS Example RO7D will return the Off Units of Output 7 Command Read Input used as Reset Form RO 1 32 G Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Outputs may be designated as latched i e once in the active state they remain active irrespective of the state of the Inputs In this mode an Input may be used to reset the Output This command reads the Input used as Reset Main Description 4 8 Input used as Reset Long Message Return If the Output has a designated Reset Input Output followed by Output number resets using input followed by the Input used as a reset signal If the Output does not have designated Reset input Output followed by input number has no reset input Short Message Return A number in the range 0 to 16 where 0 indicates no Reset Input has been designated 1 to 16 indicates the number of the Reset Input Default No Reset Input is designated Example RO5G_ Will return which Input is used as a reset for Output 5 Command Read Output Active low high Form RO 1 32 H Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Each output can be designated as either Active High or
35. cognition period as in normal operation The output will remain on for the on period and turn and remain off The output will be re activated after the input combination has first gone false and then again gone true Unlike latch mode there is no need to reset the output as this is done automatically at the end of the on period The latch parameter should not be set to true at the same time as the one shot parameter The parameter can be changed using the command WO Output Number W followed by either a 1 one shot or a 0 normal The parameter can be read using the command RO Output Numbern W The default for all outputs is normal 5 INPUTS 5 1 General The VIOM has 16 inputs which can be assigned in varying ways to outputs and Timer Counters Each input may be defined as active high or active low have a recognition and or antibounce time and can be latched 5 2 Recognition Time The recognition period for an input is the time between the input becoming active and the time at which the rest of the logic is informed that it is active This differs from the antibounce processing which is of fixed length and is applied to both the activation and the de activation Any period between 1 and 255 may be specified and this value in conjunction with the recognition units will define the total time If a value of 1 is chosen then the output will be turned on immediately The actual value of the recognition time will have an accuracy o
36. d and the units carefully For example if a recognition period of 2 seconds is required the value of this parameter could be set to 2 and the recognition units could be set to seconds This would give a period in the range 1 to 3 seconds However if the period was set to 200 and the recognition units to 10mS then the accuracy would be improved to between 1 99 seconds and 2 01 seconds Recognition periods can also be set on inputs They do behave in slightly different ways when an output is latched With an input recognition if the input goes inactive before the recognition period expires then the affected outputs will not be activated However as the latch is applied as soon as the input combination goes true on an output the output will still be activated at the end of the recognition period The parameter can be changed using the command WO Output NumbenA followed by the period value The parameter can be read using the command RO Output NumbenA The default for all outputs is 10 4 3 Recognition Units This parameter is used in conjunction with the recognition period to define the total period between the output becoming active and the output turning on The units can be set to 10mS 100mS 1 second 1 minute 1 hour or 1 day For more details see the description of recognition period The parameter can be changed using the command WO Output Number B followed by a number representing the period 0 10mS 1 100mS 2 Seconds 3 Mi
37. e Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days Default 100mS Example WO7T1 The Reset Units of Output 7 will be 100mS Command Read Output One Shot Mode Form WO 1 32 W 0 1 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 0 1 indicates One Shot Mode off 1 or One Shot Mode on 0 Description This command will set the One Shot mode for an Output Main Description 4 16 One Shot Long Message Return If in Normal mode Output followed by input number is in Normal Mode If in One Shot mode Output followed by input number One Shot Mode Short Message Return 1 One Shot mode 0 Normal mode Default Normal mode Example WO3W1 Output 3 will be in One Shot mode Command Reset Output Form WO 1 16 U Where 1 16 is the output number Description Outputs may be designated as latched i e once in the active state they remain active irrespective of the state of the controlling Inputs This command will reset the specified Output Main Description 4 11 latched not latched Long Message Return Output followed by input number Reset Short Message Return The number of the Output unlatched Default N A Example WO4U will reset Output 4 Command Write Input to control Timer Counter Form WT 1 8 A 0 32 Where 1 8 is the Timer Counter number 0 32 0
38. e Timer Counter can reset the Timer Register to zero when the controlling Input becomes active This command will set the mode Main Description 6 5 Timer reset mode Long Message Return If The Timer resets on start Timer Counter followed by Timer Counter number resets on start If the timer does not reset on start Timer Counter followed by Timer Counter number holds time on start Short Message Return 1 the Timer will reset on start 0 the Timer will retain its previous value on start Default The Timer will retain its previous value on start Example WT5D1 Timer Counter 5 will reset its register on start Command Write Timer Counter Compare Level Form WT 1 8 E number Where 1 8 is the Timer Counter number number is the value stored in the compare register in the range 0 to 1 000 000 000 Description This command will write to the Timer Counter Compare Register Main Description 6 6 Timer Counter compare Level Long Message Return Timer Counter followed by Timer Counter number comparator is followed by its value When in Timer mode this value should be in mS Short Message Return Value of the Compare Register When in Timer mode the returned value will be in mS Default 0 Example RT3E50 Will set the value of the Compare Register of Timer Counter 3 to 50 Command Reset Timer Counter Register Form WT 1 8 F Where 1 8 i
39. e controlled by a single Input The number of the Input is the same as the Output number i e Output 1 is controlled by Input 1 Output 2 is controlled by Input 2 etc Outputs 17 to 32 are controlled by a single Input The number of the Input is the 16 less than the Output number i e Output 17 is controlled by Input 1 Output 18 is controlled by Input 2 etc Example WO17L5 Input 5 will be removed from the list of Inputs controlling Output 17 Command Write Output control source Form WO 1 32 N 1 3 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 1 3 indicates the source of the control Controlled from Inputs is 1 controlled from Timer Counters is 2 and controlled from the serial port is 3 Description Outputs may be controlled from one of three sources Inputs Timer Counters or the serial port This command source of the control Main Description 6 3 Timer Counter output 8 2 Writing to a single Output 8 3 Writing to multiple inputs Long Message Return If controlled from the Inputs Output followed by input number is Controlled by Inputs If controlled from the Timer Counters Output followed by input number is Controlled by Timer Counters If controlled from the Serial Port Output followed by input number is Controlled by Serial Port Short Message Return 1 Controlled by Inputs 2 Controlled by Timer Counters
40. e prefixing can be read using the command CER When using two VIOMs in data transfer mode the error message prefix should be set to lt so that all error messages are ignored 3 6 Return to Defaults It is possible to return to the factory set defaults at any time by using the command CPD Note that any new configuration data will be lost and cannot be retrieved 3 7 Start Message When ever VIOM is started it will generate a start up message VIOM Started to inform the user or the host that it is available for use There may be occasions where this message could cause problems The message may be suppressed by using the command CSMO The next time VIOM is started the message will not appear The message can be re enabled with the command CSM1 The current status of the message suppression can be read with the command CSM 3 8 Reading the Software Version The current software version can be read with the command CSV It is important to make a note of this parameter if you need technical support As this parameter relates to the firmware it cannot be changed 4 OUTPUTS 4 1 General Outputs can be either inactive or active When inactive they are always in the same state and this state is defined by their active high active low property When they are active they can be programmed to be periodically on and off Again the on and off levels is defined by their active high active low property
41. e the value of the period and the units carefully For example if an on period of 2 seconds is required the value of this parameter could be set to 2 and the on units could be set to seconds This would give a period in the range 1 to 3 seconds However if the period was set to 200 and the on units to 10mS then the accuracy would be improved to between 1 99 seconds and 2 01 seconds The parameter can be changed using the command WO Output NumbenC followed by the period value The parameter can be read using the command RO Output NumbenC The default for all outputs is 10 4 5 On Time Units This parameter is used in conjunction with the on period to define the period for which the output is turned on The units can be set to 10mS 100mS 1 second 1 minute 1 hour or 1 day For more details see the description of on period The parameter can be changed using the command WO Output Number D followed by a number representing the period 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days The parameter can be read using the command RO Output NumbenD The default for all outputs is 100mS 4 6 Off Period This parameter is only used when the output is controlled by inputs When the output is controlled by either the Timer Counters or the Serial Port the off period is ignored This parameter is only used by Real outputs Virtual outputs will return an error message if they are programmed with a value The off period as it
42. e used as the first command in a file upload Essentially it prepares the VIOM for a rapid series of commands and tells the VIOM to dedicate itself to collecting the incoming data the command will stay in effect for a period of approximately 0 5 seconds after the last command at which point the VIOM will return to normal operation It prevents any message returns Input Updates or Character Echoes While in effect it will prevent any writing to the non volatile memory At the end of its effect all data will be written into the non volatile memory Main Description 3 3 File Download Long Message Return There is no response at the issue of the command When returning to normal operation File Transferred Short Message Return There is no response at the issue of the command When returning to normal operation A Default N A Command Read Input Recognition Time Form RI 1 16 A Where 1 16 is the input number Description Reads the Input Recognition Time for a single input Main Description 5 2 Recognition Time Long Message Return Input followed by input number Recognition Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 10 Example RI5A Will read the recognition Time of Input 5 Command Read Input Recognition Units Form RI 1 16 B Where 1 16 is the input number Description Reads the Recognition Units for a single In
43. ed by input number Not Latched Short Message Return 0 not latched 1 latched Default Not Latched Example RI13K_ Will return the latched not latched status of Input 13 Command Read Output Recognition Time Form RO 1 16 A Where 1 16 is the Output number Description Reads the Recognition Time for a single Output Main Description 4 2 Recognition Period Long Message Return Output followed by input number Recognition Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 10 Example RO5A Will read the Recognition Time of Output 5 Command Read Output Recognition Units Form RO 1 16 B Where 1 16 is the Output number Description Reads the Recognition Units for a single Output These can be 10mS 100mS 1 Second 1 Minute 1 hour or 1 Day Main Description 4 3 Recognition Units Long Message Return Output followed by input number Recognition Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days Default 100mS Example RO1B will return the Recognition Units of Output 1 Command Read Output On Time Form RO 1 16 C Where 1 16 is the Output number Description Reads the On Time for a single Output Main Description 4 4 On Period Long Message Return Output foll
44. en once the output becomes active it will remain active irrespective of the input conditions until it is reset There are two ways to reset an output either specify another input as a reset and when this becomes active the output will be deactivated or use the command WO Output Numben U via the Serial Port The latch parameter should not be set to true at the same time as the one shot parameter The parameter can be changed using the command WO Output Number K followed by either a 1 latched or a 0 non latched The parameter can be read using the command RO Output Number K The default for all outputs is non latched 4 12 Inputs on output map Each output whether Real or Virtual may be controlled by any number of the 16 Real Inputs or the 16 Virtual Inputs To allow control of the output from a particular input two actions need to be performed Firstly the output will need to be configured so that the source of control is set to Inputs using the command WO Output Number N1 This is the default condition and will only be needed if the configuration has been changed Secondly the input must be assigned to the output by writing it on to the map Use the command WO Output Number L Input Number The output will now be controlled by the specified input It will still be necessary to define the manner of the control either ANDed or ORed using the command WO Output NumbenJ If a single input is controlling an output it will not mat
45. er followed by Timer Counter number controls output followed by the controlled Output number in the range 1 to 32 If a controlling Input has not been allocated Timer Counter followed by Timer Counter number controls output followed by None Short Message Return 0 No controlled Output has been allocated 1 to 32 the number of the controlled Output Default None allocated Example WT5B22 Timer Counter 5 will control Virtual Output 22 Command Write Timer Counter mode Form WT 1 8 C 0 1 Where 1 8 is the Timer Counter number 0 1 defines the mode Timer mode is 1 and Counter mode is 0 Description Each Timer Counter can be assigned as either a counter or timer This command defines the mode of the Timer Counter Main Description 6 4 Timer Counter mode Long Message Return If the Timer Counter is in counter mode Timer Counter followed by Timer Counter number is in Counter Mode If the Timer Counter is in timer mode Timer Counter followed by Timer Counter number is in Timer Mode Short Message Return 0 counter mode 1 timer mode Default counter mode Example WT8C1 Timer Counter 8 will be in timer mode Command Write Timer reset mode Form WT 1 8 D Where 1 8 is the Timer Counter number 0 1 defines the reset mode Reset on start is 1 and no reset is 0 Description When in Timer mode th
46. er Counter number is in Counter Mode If the Timer Counter is in timer mode Timer Counter followed by Timer Counter number is in Timer Mode Short Message Return 0 counter mode 1 timer mode Default counter mode Example RT8C will return the mode of Timer Counter 8 Command Read Timer reset mode Form RT 1 8 D Where 1 8 is the Timer Counter number Description When in Timer mode the Timer Counter can reset the Timer Register to zero when the controlling Input becomes active This command will read the mode Main Description 6 5 Timer reset mode Long Message Return If The Timer resets on start Timer Counter followed by Timer Counter number resets on start If the timer does not reset on start Timer Counter followed by Timer Counter number holds time on start Short Message Return 1 the Timer will reset on start 0 the Timer will retain its previous value on start Default The Timer will retain its previous value on start Example RT5D Will return the mode of Timer Counter 5 Command Read Timer Counter Compare Level Form RT 1 8 E Where 1 8 is the Timer Counter number Description This command will read the value of the Timer Counter Compare Register Main Description 6 6 Timer Counter compare Level Long Message Return Timer Counter followed by Timer Counter number comparator is
47. esignated input becomes true In timer mode the register is incremented by 10 every 10mS while the designated input is true The parameter can be changed using the command WT Timer Counter NumbenC followed by either a 1 timer mode or a O counter mode The parameter can be read using the command RT Timer Counter NumbenC The default for all Timer Counters is counter mode 6 5 Timer reset mode This parameter is only used if a Timer Counter is in timer mode A timer will start timing when its input becomes active and will stop when the input becomes inactive When its input becomes active for a second time the timer will resume counting This parameter defines how the counter behaves on this second and subsequent transition to becoming active If the timer reset mode is enabled then each time the timers input becomes active the counter is reset to zero This mode is useful where the time for individual events is important and negates the need for a manual reset If the timer reset mode is disabled the timer will resume its count from the last value That is the timer will provide an accumulated time based on the total period of the input has been active The parameter can be changed using the command WT Timer Counter NumbenD followed by either a 1 timer resets on start of activation or a 0 timer accumulates total active time The parameter can be read using the command RT Timer Counter NumbenD The default for all
48. f or 1 unit and it is therefore important to choose the value of the period and the units carefully For example if a recognition period of 2 seconds is required the value of this parameter could be set to 2 and the recognition units could be set to seconds This would give a period in the range 1 to 3 seconds However if the period was set to 200 and the recognition units to 10mS then the accuracy would be improved to between 1 99 seconds and 2 01 seconds Recognition periods can also be set on outputs They do behave in slightly different ways when an output is latched With an input recognition if the input goes inactive before the recognition period expires then the affected outputs will not be activated However as the latch is applied as soon as the input combination goes true on an output the output will still be activated at the end of the recognition period The parameter can be changed using the command WI Outout NumbenA followed by the period value The parameter can be read using the command RI Outout NumbenA The default for all outputs is 10 5 3 Recognition Units This parameter is used in conjunction with the recognition period to define the total period between the input becoming active and the processing starting The units can be set to 10mS 100mS 1 second 1 minute 1 hour or 1 day For more details see the description of recognition period The parameter can be changed using the command WI Output Number B followed b
49. ff when the output is active If the VIOM Display or the VIOM Relay module are being used the LEDs or Relays will be on when the output is active if active low is selected The parameter can be changed using the command WO Output NumbenH followed by either a 1 active high or a 0 active low The parameter can be read using the command RO Output NumbenH The default for all outputs is active low 4 10 AND OR of map Each output whether Real or Virtual may be controlled by any number of the 16 Real Inputs or the 16 Virtual Inputs These may be either ANDed or Ored to determine the state of the associated output If the inputs are ANDed then all the designated inputs must be active before the output is active If any one of the inputs is inactive then the output is inactive If the inputs are ORed then any of the designated inputs must be active before the output is active If any one of the inputs is active then the output is active The parameter can be changed using the command WO Output NumbenJ followed by either a 1 ORed or a 0 ANDed The parameter can be read using the command RO Output Number J The default for all outputs is ORed 4 11 latched not latched Outputs may be either latched or not latched If this parameter is set to non latch the output will become active when the input conditions are satisfied Once the input conditions become false then the output will become inactive If parameter is set to latch th
50. followed by its value When in Timer mode the returned value will be in mS Short Message Return Value of the Compare Register When in Timer mode the returned value will be in mS Default 0 Example RT3E will return the value of the Compare Register of Timer Counter 3 Command Read Timer Counter Register Form RT 1 8 G Where 1 8 is the Timer Counter number Description This command will read the current value of the Timer Counter Register Main Description 6 7 Read Timer Counter Long Message Return Timer Counter followed by Timer Counter number Value followed by its value When in Timer mode the returned value will be in mS Short Message Return Value of the Timer Counter Register When in Timer mode the returned value will be in mS Default Not determined Example RT4G Will return the value of the Register of Timer Counter 3 Command Read Input to decrement Timer Counter Form RT 1 8 H Where 1 8 is the Timer Counter number Description This command will read the Input which decrements a Timer Counter Main Description 6 9 Input to decrement Timer Counter Long Message Return If an Input has been allocated Timer Counter followed by Timer Counter number is decremented by input followed by the controlling Input number in the range 1 to 32 If an Input has not been allocated Timer Counter followed by Timer Counter number is decre
51. he VIOM controller Connection is via a ribbon cable to the output header If all 16 outputs are to be used then two VIOM Relay modules will be required 3 USER INTERFACE 3 1 Message types Most commands to VIOM will provide a return message VIOM can be programmed to respond in either plain text long messages or simply short messages If you are interfacing through a terminal program it is better to have VIOM respond in a manner which is easily understood i e long messages If you are writing your own software it may be easier to check the returns if short messages are chosen In either case all messages are terminated with a carriage return line feed The command CML will switch the VIOM responses to long format while CMS will switch to short messages The default is long messages It is also possible to program a prefix for error messages by using the command CEA followed by the character to be used as the prefix All error messages whether long or short will be prefixed with the defined character Once this prefix has been set it will remain set until the command CEA is sent changing the character If CEA is sent without a character the prefix reporting will be turned off 3 2 Return Echo The VIOM has a facility to return any data it receives over the Serial Port back to the host This facility is useful for checking that the data received by the VIOM is accurate Also some terminal programs may not echo typed characters locally wh
52. ich can make the difficult to use 3 3 File Download Data can be downloaded to the VIOM manually by using a terminal type program such as HyperTerminal or automatically using special software or file transfer Where file transfer is being used especially with programs such as HyperTerminal it is desirable to turn off any handshaking or data storage so that the data may be transferred rapidly Using the command FDL as the first command in a file transfer informs the VIOM that a file transfer is in progress The VIOM will now do two things Firstly it will inhibit any outgoing messages from the VIOM to the terminal Secondly it will not immediately store any data in the EEPROM while the transfer is in progress After approximately 0 5 seconds has elapsed since the last command has been received outgoing messages will be automatically enabled and all new data will be stored in the EEPROM 3 4 Comments When creating files for subsequent downloading to VIOM it can be very useful to include comments Any line beginning with the character lt will be ignored by VIOM until a carriage return line feed is detected 3 5 Error Message Prefix Error messages can be allocated a prefix so that the host is able to recognise them easily To set an error message prefix use the command CEA followed by the prefix to be used If error message prefixing is to be disabled just use the command CEA The current character used for error messag
53. ifference sources of the data This latter facility can be used to create a data link between two VIOMs By setting the prefix to Z and connecting the Serial Ports together with a null modem cable inputs on one VIOM will be mimicked on the second VIOM and vice versa For more details see the application note It is only possible to read all 16 Real inputs in a single batch Outputs may be read either individually or as a block When reading a complete block it is possible to read the Real outputs the Virtual outputs or all outputs together 7 2 Requesting Input Status Input status may be requested by issuing the command CIN This will return the current status of all the Real inputs A prefix may be assigned to the returned report by using the command CIP3 followed by the character to be used as a prefix Once this prefix has been set it will remain set until the command CIP is sent or it is changed using the CIP3 command 7 3 Reporting Input Status on change Input status can also be programmed to report whenever an input changes All 16 Real inputs will be reported in the same packet In this mode all status reports are in the short form irrespective of the message type currently enabled The status report is a series of 16 1s or Os terminated by a carriage return line feed The first digit of the report relates to input 1 the second to input 2 and so on A 1 on the report indicates that the input is active and a zero indicate
54. input condition becomes false then the output will become inactive If parameter is set to latch then once the output becomes active it will remain active irrespective of any change to the input There are two ways to reset an input either specify another input as a reset and when this becomes active the latched input will be deactivated or use the command WI Output NumbenuU via the Serial Port The parameter can be changed using the command WI Output Number K followed by either a 1 latched or a 0 non latched The parameter can be read using the command RI Output Number K The default for all inputs is non latched 6 TIMER COUNTERS 6 1 General VIOM has 8 internal Timer Counter registers Each register is 32 bits wide and can therefore count up to 4 000 000 000 Each register may be allocated as either a timer or a counter When in timer mode it will count time in mS with a resolution of 10mS The Timer Counters are controlled by a single input which may be either Real or Virtual In addition they can control a single output again either Real or Virtual The output will be active when a threshold stored in a separate comparator is exceeded The output will remain active until the Timer Counter is cleared or is reduced below the threshold The value in each register may be read and cleared via the Serial Port 6 2 Input to control Timer Counter Each Timer Counter is controlled by a single Real or Virtual input In timer
55. iption 4 4 On Period Long Message Return Output followed by input number On Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 10 Example WO0O16C255 The On Time of Output 16 will be 255 Command Write Output On Units Form WO 1 16 D 0 5 Where 1 16 is the Output number 0 5 represent the Input Recognition Units Description Writes the On Units for a single Output These can be 0 10mS 1 100mS 2 Seconds 3 Minutes 4 Hours or 5 Days Main Description 4 5 On Time Units Long Message Return Output followed by input number On Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days Default 100mS Example WO1B0 The On Units of Output 1 will be 10mS Command Write Output Off Time Form WO 1 16 E 0 255 Where 1 16 is the Output number 0 255 is the new value Description Writes the Off Time for a single Output The written value must be in the range 0 to 255 Main Description 4 6 Off Period Long Message Return Output followed by input number Off Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 10 Example WO16E10 The Off Time of Output 16 will be 10 Command Write Output Off Units Form WO 1 16 F 0 5
56. is no Input selected 1 to 16 is a Real Input and 17 to 32 is a Virtual Output Description This command will define the Input which controls a Timer Counter Main Description 6 2 Input to control Timer Counter Long Message Return If a controlling Input has been allocated Timer Counter followed by Timer Counter number is controlled by input followed by the controlling Input number in the range 1 to 32 If a controlling Input has not been allocated Timer Counter followed by Timer Counter number is controlled by input followed by None Short Message Return 0 No controlling Input has been allocated 1 to 32 the number of the controlling Input Default None allocated Example WT1A3 Timer Counter 1 will be controlled by Real Input 3 Command Write Timer Counter Output Form WT 1 8 B 0 32 Where 1 8 is the Timer Counter number 0 32 0 is no Output selected 1 to 16 is a Real Output and 17 to 32 is a Virtual Output Description Each Timer Counter can control a single Output The Output is active when the value in the Timer Counter exceeds that in the Timer Counter comparator This command will define the controlled Output Note that the Output will not be activated if the source of control is not set to 2 using the command WO 1 32 N2 Main Description 6 3 Timer Counter output Long Message Return If a controlled Output has been allocated Timer Count
57. it will not be acted upon and an error message will be generated Main Description 8 3 Writing to multiple Outputs Long Message Return Output followed by the output number followed by one of Inactive Active for each Virtual Output Short Message Return A number in the range 0 to 1 where 0 Inactive 1 Active for each Virtual Output Default N A Example Y0000000000000111 will set Virtual Outputs 14 15 and 16 and clear all others Command Set Real Output without return messages Form Z 16 10r0 where 16 1or0 is a series of 1s and Os which define the state of the 16 Real Outputs Description This command will set the state of all 16 Real Outputs with a single command All 16 Real Outputs must be set at the same time otherwise it will not be acted upon Main Description 8 3 Writing to multiple Outputs Long Message Return None Short Message Return None Default N A Example Z1110000000000000 will set Real Outputs 1 2 and 3 and clear all others Command Set Real Outputs with return messages Form Z 16 10r0 where 16 10r0 is a series of 1s and Os which define the state of the 16 Real Outputs Description This command will set the state of all 16 Real Outputs with a single command All 16 Real Outputs must be set at the same time otherwise it will not be acted upon and an error message will be generated Main Description 8 3 Writing to multiple Outputs Long Message Retu
58. mented by input followed by None Short Message Return 0 No controlling Input has been allocated 1 to 32 the number of the controlling Input Default None allocated Example RT1H Will read the Input which decrements Timer Counter 1 Command Read Input to reset Timer Counter Form RT 1 8 J Where 1 8 is the Timer Counter number Description This command will read the Input which resets a Timer Counter Main Description 6 8 Clearing a Timer Counter Long Message Return If an Input has been allocated Timer Counter followed by Timer Counter number is reset by input followed by the controlling Input number in the range 1 to 32 If an Input has not been allocated Timer Counter followed by Timer Counter number is reset by input followed by None Short Message Return 0 No reset Input has been allocated 1 to 32 the number of the reset Input Default None allocated Example RT1J Will read the Input which resets Timer Counter 1 Command Write Input Recognition Time Form W1 1 16 A 0 255 Where 1 16 is the input number 0 255 is the new value Description Writes the new Input Recognition Time for a single input The written value must be in the range 0 to 255 Main Description 5 2 Recognition Time Long Message Return Input followed by input Number recognition Time is followed by the new number Short Message Return A
59. mode the register is incremented while the input is active In counter mode the register is incremented once each time the input becomes active The parameter can be changed using the command WT Timer Counter NumbenA followed by the input which is to control the Timer Counter The parameter can be read using the command RT Timer Counter NumbenA The default for all Timer Counters is no input is designated 6 3 Timer Counter output As each Timer Counter is incremented its value is compared with a level specified in the Timer Counter comparator An output can be designated to be activated while the value in the Timer Counter register exceeds that in the Timer Counter comparator When the value in the Timer Counter register is below that in the Timer Counter comparator the output will be inactive To allow control of the output from a particular Timer Counter two actions need to be performed Firstly the output will need to be configured so that the source of control is set to Timer Counter using the command WO Output Number N2 The default condition for this parameter is Inputs and will is therefore needed Secondly the input must be defined by using the command W NumbenB Inout Number The parameter can be read using the command RT Timer Counter NumbenB 6 4 Timer Counter mode Each Timer Counter may be used as a timer or a counter In counter mode the register is incremented each time the d
60. mple WO8J0 Output 8 will have its Inputs ANDed Command Write Output latched not latched Form WO 1 32 K 0 1 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 0 1 indicates latched 1 or not latched 0 Description Outputs may be designated as latched i e once in the active state they remain active irrespective of the state of the controlling Inputs This command writes the latched not latched designation Main Description 4 11 latched not latched Long Message Return If latched Output followed by input number Latched If not latched Output followed by input number Not Latched Short Message Return 0 not latched 1 latched Default Not Latched Example Wwo11K1 Output 11 will be latched Command Add Inputs on to the Output map Form WO 1 32 L 1 32 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 1 32 is the Input number 0 to 16 Real Inputs 17 to 32 Virtual Inputs Description Each Output Real and Virtual may be controlled by a number of Inputs This command will add an Input to the list or map which controls an Output Main Description 4 12 Inputs on output map Long Message Return Output followed by input number is Controlled by Inputs followed by a list of Inputs separated by commas If no Inputs have been so designated the list of Inputs is replaced with None
61. n and another needed to be active while the switch was closed there would be a problem This parameter allows for this set of conditions On each output it is possible to define the sense of each input In this case we could define the input as active low active when the switch was closed Now the output needing the switch closed would be satisfied the output needing switch open could now have that input added to its invert map and thus as far as that input was concerned the input would be active when the switch was open To add an input on to the map use the command WO Output Number P Input Number Inputs can removed from the map using the command WO Output Number Q Input Numben The parameter can be read using the command RO Output NumbenP Note that it is only possible to invert Real inputs 4 14 Reset Period This parameter is only used when the output is controlled by inputs When the output is controlled by either the Timer Counters or the Serial Port the reset period is ignored This parameter is only used by Real outputs Virtual outputs will return an error message if they are programmed with a value The reset period is used in conjunction with the reset units and is defined as the period for which a reset input must be active before the controlled output becomes inactive Any period between 1 and 255 may be specified and this value in conjunction with the reset units will define the total time If a value of 1 is chosen
62. ndicates the number of the Reset Input Default No Reset Input is designated Example W05G3 Output 5 will be reset by Input 3 Command Write Output Active low high Form WO 1 32 H 0 1 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 0 1 indicates active high 1 or active low 0 Description Each Output can be designated as either Active High or Active Low This command writes the designation Main Description 4 9 Active low high Long Message Return If Active High Output followed by input number is Active High If Active Low Output followed by input number is Active Low Short Message Return 0 Active Low 1 Active High Default Active Low Example WO2H1 Output 2 will active high Command Write Output uses AND OR of map Form WO 1 32 J 0 1 Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs 0 1 indicates OR 1 or AND 0 Description Each Output is controlled by a number of Inputs To determine if the Output is active these Inputs may be ANDed or ORed This command writes if the Inputs are ANDed 0 or Ored 1 Main Description 4 10 AND OR of map Long Message Return If ORed Output followed by input number Inputs are ORed If ANDed Output followed by input number Inputs are ANDed Short Message Return 1 ORed 0 ANDed Default Ored Exa
63. nute 4 Hours 5 Days The parameter can be read using the command RO Outpout NumbenB The default for all outputs is 100mS 4 4 On Period This parameter is only used when the output is controlled by inputs When the output is controlled by either the Timer Counters or the Serial Port the on period is ignored This parameter is only used by Real outputs Virtual outputs will return an error message if they are programmed with a value The on period as its name implies is the period for which the output is turned on after the recognition period If the period is set to zero the output will remain permanently on i e there will be no off time The behaviour of the output at the end of this period will depend on other parameters If the one shot parameter is set to enabled the output will turn off and remain off until the input combination becomes true again after first going false If the off period is set to zero the output will remain off until it has been reset if latched or the input conditions go false and the return true In normal operation the output will again turn on at the end of the off period and will remain on for the on period This sequence will repeat until the output become inactive Any period between 0 and 255 may be specified and this value in conjunction with the on units will define the total time The actual value of the on time will have an accuracy of or 1 unit and it is therefore important to choos
64. owed by input number On Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 10 Example RO16C Will read the On Time of Output 16 Command Read Output On Units Form RO 1 16 D Where 1 16 is the Output number Description Reads the On Units for a single Output These can be 10mS 100mS 1 Second 1 Minute 1 hour or 1 Day Main Description 4 5 On Time Units Long Message Return Output followed by input number On Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days Default 100mS Example RO1B will return the On Units of Output 1 Command Read Output Off Time Form RO 1 16 E Where 1 16 is the Output number Description Reads the Off Time for a single Output Main Description 4 6 Off Period Long Message Return Output followed by input number Off Time is followed by a number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 10 Example RO16E Will read the Off Time of Output 16 Command Read Output Off Units Form RO 1 16 F Where 1 16 is the Output number Description Reads the Off Units for a single Output These can be 10mS 100mS 1 Second 1 Minute 1 hour or 1 Day Main Description 4 7 Off Time Units Long Message Return Output followed
65. put These can be 10mS 100mS Seconds Minutes Hour or Day Main Description 5 3 Recognition Units Long Message Return Input followed by input number Recognition Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days Default 10mS Example RIB will return the Recognition Units of Input 1 Command Read Anti Bounce on off Form RI 1 16 C Where 1 16 is the input number Description Reads if the Input has Anti Bounce enabled Main Description 5 4 AntiBounce Long Message Return Input followed by input number Antibounce is followed by the either On or Off Short Message Return Either 1 Anti Bounce enabled or 0 Anti Bounce disabled Default Anti Bounce enabled Example RI12C_ will return the Anti Bounce status of Input 12 Command Read Input used as Reset Form RI 1 16 G Where 1 16 is the input number Description Inputs may be designated as latched i e once in the active state they remain active irrespective of the state of that Input In this mode a second input may be used to reset the Input This command reads the Input used as Reset Main Description 5 5 Input used as Reset Long Message Return If the Input has a designated Reset input Input followed by input number resets using input followed by the input used as a re
66. r all Timer Counters Form DC A G where A G is A Input to control Timer Counter B Timer Counter output C Timer Counter mode D Timer reset mode E Timer Counter Compare Level G Timer Counter H Input to decrement Timer Counter Description The command will return the values of a particular parameter for all the timer counters Main Description 6 TIMER COUNTERS Long Message Return Dependant on parameter See appropriate Read Command Short Message Return Dependant on parameter See appropriate Read Command Default N A Example DBD Will return the Reset mode for each of the Timer counters Command Download all Parameters for a Single Input Form DI 1 16 where 1 16 is the number of the Input Description This command will download Recognition Time Recognition Units Anti Bounce on off Input used as Reset Input Active low high Input latched not latched for a single input Main Description 5 INPUTS Long Message Return A combination of Read Input parameter responses Short Message Return A combination of Read Input parameter responses Default N A Example DI5 will download all parameters for Input 5 Command Download all Parameters for Output Form DO 1 32 where 1 32 is the number of the Output Description f the Output number is less than 16 i e Real Output the command will download Recognition Time Recognition Units On Time On Time Unit
67. rn Output followed by the output number followed by one of Inactive Active Recognition Period On Period Off Period Wait Reset for each Real Output Short Message Return A number in the range 0 to 4 where 0 Inactive 1 Recognition Period 2 On Time 3 Off Time 4 Wait Reset for each Real Output Default N A Example Z0000000000000111 will set Virtual Outputs 14 15 and 16 and clear all others Phaedrus Limited Unit 1 Darwen Enterprise centre Railway Road Darwen England 44 0 1254 772622 tech phaedrusltd co uk www phaedruslitd co uk Issue 1 1
68. s Form COV Description Requests the current state of the 16 Virtual Outputs Main Description 7 6 Reading Multiple Outputs Long Message Return Output followed by the output number followed by one of Inactive Active for each Virtual Output Short Message Return A number in the range 0 to 1 where 0 Inactive 1 Active for each Virtual Output Default N A Command Request Port Return Echo Status Form CR Description The module can be programmed to echo back all received characters on the serial port This command reads the current status of echo back Main Description 3 2 Return Echo Long Message Return Either Serial Port echo is on Or Serial Port echo is off Short Message Return 1 or 0 where 1 Echo Back is on 0 Echo Back is off Default Return Echo on Command Set Port Return Echo Status Form CR 1 or 0 where 1 turns return Echo on 0 turns return Echo off Description The module can be programmed to echo back all received characters on the serial port This command sets the state of Return Echo Main Description 3 2 Return Echo Long Message Return Either Serial Port echo is on Or Serial Port echo is off Short Message Return sa or Q where 1 Echo Back is on 0 Echo Back is off Default Return Echo on Command Requests the Start Message Status Form CSM Description When power is applied to
69. s Off Time Off Time Units Input Used as Reset Output Active low high Output uses AND OR of map Output latched not latched Inputs on Output map Inputs on Output map Reset Time Reset Units and Output One Shot If the Output number is greater than 16 i e Virtual Output the command will download Input Used as Reset Output Active low high Output uses AND OR of map Output latched not latched Inputs on Output map Inputs on Output map Reset Time Reset Units and Output One Shot Main Description 4 OUTPUTS Long Message Return A combination of Read Output parameter responses Short Message Return A combination of Read Output parameter responses Default N A Example D012 will download all parameters for Output 12 Command Download Timer Counter Parameters Form DT 1 8 where 1 8 is the number of the Timer Counter Description this command will download Input to control Timer Counter Timer Counter Output Timer Counter mode Timer reset mode Timer Counter compare Level current Timer Counter value and Input to decrement Timer Counter Main Description 6 TIMER COUNTERS Long Message Return A combination of Read timer Counter parameter responses Short Message Return A combination of Read timer Counter parameter responses Default N A Example DT1 will download all parameters for Timer Counter 1 Command File Download Form FDL Description This command is should b
70. s name implies is the period for which the output is turned off after an on period If the off period is set to zero the output will remain off until it has been reset if latched or the input conditions go false and the return true Any period between 0 and 255 may be specified and this value in conjunction with the off units will define the total time The actual value of the off time will have an accuracy of or 1 unit and it is therefore important to choose the value of the period and the units carefully For example if an off period of 2 seconds is required the value of this parameter could be set to 2 and the on units could be set to seconds This would give a period in the range 1 to 3 seconds However if the period was set to 200 and the off units to 10mS then the accuracy would be improved to between 1 99 seconds and 2 01 seconds The parameter can be changed using the command WO Output NumbenE followed by the period value The parameter can be read using the command RO Output Number F The default for all outputs is 10 4 7 Off Time Units This parameter is used in conjunction with the off period to define the period for which the output is turned off The units can be set to 10mS 100mS 1 second 1 minute 1 hour or 1 day For more details see the description of off period The parameter can be changed using the command WO Output Number F followed by a number representing the period 0 10mS 1 100mS 2 Seconds 3
71. s report by using the command CIP2 followed by the character to be used as a prefix Once this prefix has been set it will remain set until the command CIP is sent or it changed using the CIP2 command To enable the update reporting use the command CIR followed by a single number to specify the period 1 100mS 2 1 second 3 1 minute 4 1 hour or 5 1 day to disable update reporting use the command CIRO To read the current status of change reporting use the command CIR The default for this facility is disabled 7 5 Reading Single Output Outputs may be read either individually or as a block To read a single output use the command XC Output Number Outputs 1 to 16 are Real while outputs 17 to 32 are Virtual Virtual outputs will return their current status as either active or inactive Real outputs will return either inactive or their current position in the output cycle Note that this command will return the current status of the output The logic level of the output will be determined by the active high active low parameter 7 6 Reading Multiple Outputs When reading the outputs as a block it is possible read all Real outputs all Virtual outputs or all outputs To read the Real outputs use the command COR for the Virtual outputs use COV and for all outputs use COA Virtual outputs will return their current status as either active or inactive Real outputs will return either inactive or their current position in the output
72. s that it is inactive Note that the report does not indicate the actual level of the input but uses the level in conjunction with the active high active low parameter A prefix may be assigned to the change status report by using the command CIP1 followed by the character to be used as a prefix Once this prefix has been set it will remain set until the command CIP is sent or it changed using the CIP1 command To enable the change reporting use the command CIC1 To turn off change reporting use the command CICO To read the current status of change reporting use the command CIC The default for this facility is disabled 7 4 Regular Update Input Status reporting Input status can be set to report a regular intervals regardless of an change in input status All 16 Real inputs will be reported in the same packet The report period can be set to 100mS 1 second 1 minute 1 hour or 1 day In this mode all status reports are in the short form irrespective of the message type currently enabled The status report is a series of 16 1s or Os terminated by a carriage return line feed The first digit of the report relates to input 1 the second to input 2 and so on A 1 on the report indicates that the input is active and a zero indicates that it is inactive Note that the report does not indicate the actual level of the input but uses the level in conjunction with the active high active low parameter A prefix may be assigned to the change statu
73. s the Timer Counter number Description This command will reset the current value of the Timer Counter Register to 0 Main Description 6 8 Clearing Timer Counter Long Message Return Timer Counter followed by Timer Counter number Value followed by its value When in Timer mode the returned value will be in mS Short Message Return Value of the Timer Counter Register When in Timer mode the returned value will be in mS Default Not determined Example WT4F Will reset the value of the Register of Timer Counter 3 to zero Command Write Input to deceement Timer Counter Form WT 1 8 H 0 32 Where 1 8 is the Timer Counter number 0 32 0 is no Input selected 1 to 16 is a Real Input and 17 to 32 is a Virtual Output Description This command will define the Input which decrements a Timer Counter Main Description 6 9 Input to decrement Timer Counter Long Message Return If an Input has been allocated Timer Counter followed by Timer Counter number is decremented by input followed by the controlling Input number in the range 1 to 32 If an Input has not been allocated Timer Counter followed by Timer Counter number is decremented by input followed by None Short Message Return 0 No controlling Input has been allocated 1 to 32 the number of the controlling Input Default None allocated Example WT1H3 Timer Counter 1 will be decremented
74. set signal If the Input does not have designated Reset input Input followed by input number has no reset input Short Message Return A number in the range 0 to 16 where 0 indicates no Reset Input has been designated 1 to 16 indicates the number of the Reset Input Default No Reset Input is designated Example RI15G Will return which Input is used as a reset for Input 15 Command Read Input Active low high Form RI 1 16 H Where 1 16 is the input number Description Each Input can be designated as either Active High or Active Low This command reads the designation Main Description 5 6 Input Active low high Long Message Return If Active High Input followed by input number is Active High If Active Low Input followed by input number is Active Low Short Message Return 0 Active Low 1 Active High Default Active Low Example RI7H Will return the Active Low Active High status of Input 7 Command Read Input latched not latched Form RI 1 16 K Where 1 16 is the input number Description Inputs may be designated as latched i e once in the active state they remain active irrespective of the state of that Input This command reads the latched not latched status Main Description 5 7 Input latched not latched Long Message Return If latched Input followed by input number Latched If not latched Input follow
75. t Input 4 Command Write Output Recognition Time Form WO 1 16 A 0 255 Where 1 16 is the Output number 0 255 is the new value Description Writes the Recognition Time for a single Output The written value must be in the range 0 to 255 Main Description 4 2 Recognition Period Long Message Return Output followed by input number Recognition Time is followed by the new number in the range 0 to 255 Short Message Return A number in the range 0 to 255 Default 10 Example WO5A123 The Recognition Time of Output 5 will be 123 Command Write Output Recognition Units Form WO 1 16 B 0 5 Where 1 16 is the Output number 0 5 represent the Input Recognition Units Description Writes the Recognition Units for a single Output These can be 0 10mS 1 100mS 2 Seconds 3 Minutes 4 Hours or 5 Days Main Description 4 3 Recognition Units Long Message Return Output followed by input number Recognition Units are followed by the units Short Message Return A number in the range 0 to 5 where 0 10mS 1 100mS 2 Seconds 3 Minutes 4 Hours 5 Days Default 100mS Example WO1B3 The Recognition Units of Output 1 will be Minutes Command Write Output On Time Form WO 1 16 C 0 255 Where 1 16 is the Output number 0 255 is the new value Description Writes the On Time for a single Output The written value must be in the range 0 to 255 Main Descr
76. t and regular each type may have a single character as prefix so that it is possible to distinguish from which type of report the message originated This command will set the prefix for each type of reporting Main Description 7 2 Requesting Input Status 7 3 Reporting Input Status on change 7 4 Regular Update Input Status reporting Long Message Return Depending on which type of reporting has been addressed Change Prefix Update Prefix Request Prefix followed by the character assigned Short Message Return The character assigned Default No prefix Example ClIP1a Prefix Change Reports with the character a Command Write No Prefix Input Reporting Form CIP 1 3 Description There are 3 types of input reporting on change on request and regular each type may have a single character as prefix so that it is possible to distinguish from which type of report the message originated This command will turn the prefix off for each type of reporting Main Description 7 2 Requesting Input Status 7 3 Reporting Input Status on change 7 4 Regular Update Input Status reporting Long Message Return Depending on which type of reporting has been addressed Change Prefix None Update Prefix None Request Prefix None Short Message Return A Default No prefix Example CIP1 No Prefix for Change Reports Command Read Input Reporting Period Form CIR Description
77. ter NumbenJ The default for all Timer Counters is no input is designated 6 9 Decrementing the Counter When in counter mode the Timer Counter register can have its value decremented by one each time an input is activated In order for this input to be effective the Timer Counter must have a controlling input enabled and must be in counter mode The value for this parameter has no effect when the Timer Counter is in timer mode The value of the counter will not decrement passed zero The parameter can be changed using the command WT Timer Counter NumbenH followed by the input which is to decrement the Timer Counter The parameter can be read using the command RT Timer Counter NumbenH The default for all Timer Counters is no input is designated 7 READING DATA 7 1 General The current status of all the inputs may be requested by the host via the Serial Port in several forms In its simplest form a command is issued requesting the information and this is returned by the VIOM Alternatively the VIOM can send data as requested without intervention of the host this can take two forms Either the VIOM can send the data at fixed periods or whenever there is a change on any inputs It may be that the host is required to use a combination of these forms and confusion may arise as to the source of the data It is therefore possible to prefix each data packet with a user defined character The prefix may be different for the three d
78. ter whether the AND function or the OR function is used However when more than 1 input is assigned to an output then the parameter will need to be set It may be necessary to remove inputs from the map This can be done using the command WO Output Number M Input Number If no inputs are assigned to an output and the source of its control is Inputs then that output will remain permanently inactive The default condition is that each Real output is controlled by it corresponding input i e Real input 1 controls Real output 1 Real input 2 controls Real output 2 etc The Virtual outputs are configured in a similar manner with Virtual output 17 controlled by Real input 1 Virtual output 18 controlled by Real input 2 The parameter can be read using the command RO Output NumbenL This parameter will not be used if the source of output control is set to either a timer or the Serial Port 4 13 Inputs on Invert map As well as being able to control an output when a series of inputs are active it is possible to invert an input so that it can turn an output on when it is inactive It is possible to define an input as either active high or active low Thus if a switch was being used to control the input it could be defined as being active when it is either open or closed This would work fine if all outputs using this input needed to sense the switch for a particular condition However if one output needed to be active while the switch was ope
79. then the output will be turned on immediately The actual value of the reset time will have an accuracy of or 1 unit and it is therefore important to choose the value of the period and the units carefully For example if a reset period of 2 seconds is required the value of this parameter could be set to 2 and the reset units could be set to seconds This would give a period in the range 1 to 3 seconds However if the period was set to 200 and the reset units to 10mS then the accuracy would be improved to between 1 99 seconds and 2 01 seconds The parameter can be changed using the command WO Output Numben S followed by the period value The parameter can be read using the command RO Output NumbenS The default for all outputs is 10 4 15 Reset Units This parameter is used in conjunction with the reset period to define the total period between the reset input becoming active and the output becoming inactive The units can be set to 10mS 100mS 1 second 1 minute 1 hour or 1 day For more details see the description of reset period The parameter can be changed using the command WO Output Number T followed by a number representing the period 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days The parameter can be read using the command RO Outpout Number T The default for all outputs is 100mS 4 16 One Shot In one shot mode the output will be turned on after the input combination becomes true and after the re
80. urn State of each of the Inputs in the form Input 1 Inactive Short Message Return State of each of the Inputs input 1 first and input 16 last 1 indicates active O indicates inactive Default N A Command Read Prefix of Input Reporting Form CIPO Description There are 3 types of input reporting on change on request and regular each type may have a single character as prefix so that it is possible to distinguish from which type of report the message originated This command will return the prefix for each type of reporting Main Description 7 2 Requesting Input Status 7 3 Reporting Input Status on change 7 4 Regular Update Input Status reporting Long Message Return If no prefixes have been allocated Change Prefix None Update Prefix None Request Prefix None If prefixes a b and c have been allocated Change Prefix a Update Prefix b Request Prefix c Short Message Return Change Prefix followed by Update Prefix followed by Request Prefix separated by commas If no prefixes have been allocated If prefixes a b and c have been allocated a b c Default N A Command Write Prefix Input Reporting with character Form CIP 1 3 char where 1 Change Prefix 2 Update Prefix 3 Request Prefix char is the character which is to prefix the report Description There are 3 types of input reporting on change on reques
81. ut 18 is controlled by Input 2 etc Example RO17L Will read the controlling Inputs of Virtual Output 17 Command Read Output control source Form RO 1 32 N Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Outputs may be controlled from one of three sources Inputs Timer Counters or the serial port This command reads the source of the control Main Description 6 3 Timer Counter output 8 2 Writing to a single Output 8 3 Writing to multiple inputs Long Message Return If controlled from the Inputs Output followed by input number is Controlled by Inputs If controlled from the Timer Counters Output followed by input number is Controlled by Timer Counters If controlled from the Serial Port Output followed by input number is Controlled by Serial Port Short Message Return 1 Controlled by Inputs 2 Controlled by Timer Counters 3 Controlled by Serial Port Default Controlled by Inputs Example RO11N will read the source of control of Output 11 Command Read Inputs on Invert map Form RO 1 32 P or RO 1 32 Q Where 1 32 is the Output number 0 to 16 Real Outputs 17 to 32 Virtual Outputs Description Inputs on each Output Real and Virtual may be inverted This command will read the Inputs which are inverted on an Output Main Description 4 13 Inputs on Invert map Long Message Return
82. y a number representing the period 0 10mS 1 100mS 2 Seconds 3 Minute 4 Hours 5 Days The parameter can be read using the command RI Output NumbenB The default for all outputs is 100mS 5 4 AntiBounce AntiBounce is useful where mechanical contacts are used as an input As the contacts close they can make and break several times before settling It can also be useful in applications where there is a high level of electrical noise The down side to AntiBounce is that the change of state of an input will slower to register with AntiBounce on and this may affect the accuracy of timers Effectively the AntiBounce ensures that the input is active or inactive for approximately 200mS before it is declared active to the rest of the processing This differs from the recognition period processing which is of variable length and is applied only to the activation The parameter can be changed using the command WI nput Number C followed by either a 1 AntiBounce enabled or a 0 AntiBounce disabled The parameter can be read using the command RI Output Number C The default for all inputs is AntiBounce enabled 5 5 Input used as Reset An input can be set to latch so that once that input becomes active it will remain active irrespective of any change in input condition until it is reset There are two ways to reset an input either specify another input as a reset and when this becomes active the input will be deactivated

VERSATILE INPUT OUTPUT MODULE USER MANUAL

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