M3000 Blocking Function
Contents
1. can alter various configuration parameters of the M3000 This configuration will be stored in the E7PROM The display will now read Prg Gr 1 Inp 1 InpTp 20mA 3 Press the 4 key in order to go from group 1 to group A Prg Gr A Const No 00 0 4 Use the C key in order to go to the Number field Prg Gr A Const No 00 0 5 Press the key a number of times in order to go to Const No 18 Prg Gr A Const No 18 0 6 Use the C key in order to go to the next field Prg Gr A Const No 18_ 0 7 Use the numeric keys in order to change the constant to 1 for REF Prg Gr A Const No 18_ 1 Setting the Block 2 flag for Alarm no 1 1 Press the M key twice The display will now read Prg Gr 1 Inp 1 InpTp 20mA 2 Use the C key in order to go to the Input field Prg Gr 1 Inp 1 InpTp 20mA 3 Press the key a number of times until the display reads Prg Gr 1 Alr 1 Text Low Pr 1 4 Use the C key in order to go to the Parameter field Prg Gr 1 Alr 1 Text Low Pr 1 5 Press the key a number of times until the display reads Prg Gr 1 Alr 1 Flags 00000000 6 Use the C key in order to go to the Flag bits Prg Gr 1 Alr 1 Flags 00000000 7 Use the lt key in order to go to bit 3 Prg Gr 1 Alr 1 Flags 00000000 8 Press the key in order to change bit 3 Prg Gr 1 Alr 1 Flags 00001000 9 On the rear side of the unit now switch back to alarm mode ALARM The LEDs on the2. SELCO TECHNICAL NOTE NO 11 2003 11 11 Setting blocking functions on the M3000 When setting up alarms on the M3000 it is sometimes useful to be able to set up an alarm blocking function For example most pressure alarms from an engine must be blocked until the engine has reached its normal speed Without blocking the M3000 would report pressure alarm while the engine is off duty not running If the M3000 has an EPROM Date of 250303 25th March 2003 or newer two blocking functions are available which means that you can block on two different conditions If the EPROM date is older only one blocking function is available The first alarm blocking function can be activated using the M3092 Programmer The General Parameter Block should be activated and the alarms to block should be set using a Blocking Flag in the Alarm section The second blocking function must at the moment be entered from the M3000 front panel keyboard In a later revision of the M3092 Programmer it will also be possible to activate the second blocking function from the programme First alarm blocking function In the General Pane the Block parameter can be set In order to set the parameter from the program the M3000 must be dated 190301 19 March 2001 or newer If the date is older than that the parameter must be entered from the font panel keyboard as described in the M3096 User s Manual Fi Untitled Selco M3092 P M E File Edit Vie
3. front will now go off 10 On the front press the M key twice The unit is now back in alarm mode The M3000 is now ready for use with the second alarm blocking function Erik Mikkelsen Product Manager
4. rch 2003 or newer a second alarm blocking function can be entered from the M3000 front panel keyboard later it will be incorporated in the M3092 software This alarm blocking function is made available when setting the value of constant 18 in group A different from 0 Setting the constant to 1 will cause all alarms with a Block 2 flag to be blocked when input 1 of group 7 IN71 is connected to of the supply voltage Setting the constant to 2 will cause alarms with a Block 2 flag to be blocked when input 1 of group 7 IN71 is connected to GND The Block2 flag represents the status of the second alarm blocking function The related alarm will be blocked by the second block control input when this flag is set Input terminal 1 of group 7 is the second block control input as described above This flag is bit number 3 of the Flags parameter The 8 bits of the Flag parameter are numbered 0 to 7 number 0 being the bit furthest to the right Step by step procedure In the following it is described how to activate the second alarm blocking function from the keyboard by setting General A18 to 1 and how set to the Block 2 flag for Alarm no 1 Setting General Constant 18 1 On the rear side switch from alarm mode to programming mode PROG The LEDs on the front will now all go on steady light 2 Press the M key on the front The unit is now in a configuration mode where you
5. w Tools Help DSH agea a Constants Selections a Initialization Function Test Device Number RS 485 Baud Rate RS 232 Baud Rate Remote LED Test Remote Reset Reset Function Output Follows Alarm Block Alarm Out Inverted Second Alarm Pulse Hysteresis in General Physical Input Logical Input Alarm Selecting REF or REF will make the alarm block function available Selecting REF will cause all alarms with a Block flag to be blocked when input 1 of group 8 IN81 is connected to of the supply voltage Selecting REF will cause alarms with a blocking flag to be blocked when input 1 of group 8 IN81 is connected to GND There are three flags which can be set ON or OFF using the Flags parameter in the alarm section The Block flag represents the status of the alarm blocking function The related alarm will be blocked by the first block control input when it is set to ON Input terminal 1 of group 8 is the first block control input as described above iat Block m3g Selco M3092 Programmer File Edit View Tools Help Ose sae sg aa SetPoint LCD Text Delay s LED Output Flags IN 11 i LowPr 1 2 IN 12 i LowPr 2 2 3 A13 IN13 i LowPr 3 2 4 A14 IN 31 EXH A TC 2 General Physical Input Logical Input Alarm Ready Second alarm blocking function If the M3000 has an EPROM Date of 250303 25th Ma
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