MCB80 User`s Manual
Contents
1. 3 Analog Input3 3 Universal Input I digital 4 Analoglnput4 Universal Input 2 digital 5 AnaloglnputS Universal Input 3 digital 6 Analoglnput6 Universal Input 4 digital 7 Analogimput7 7 Universal Input 5 digital 8 AnalogInput8 Universal Input 6 digital 9 S Universal Input 7 digital 10 Analog Output Universal Input 8 digital 11 Analog OQutput2 Status Input I RLY80 12 Analog Output3 Status Input 2 RLYSO 13 Analog Output4 Status Input 3 RLY80 14 Analog Outputs Status Input 4 RLY8O 15 AnalogOutput6 6 Status Input 5 RLYSO 16 AnalogOutput7 7 Status Input 6 RLY80 17 AnalogOutput8 8 Status Input 7 RLY80 18 Status Input 8 RLYSO 19 Digital Output 1 Digital Output 5 DigitalOutput3 iigital Outputs P Digital Outputs Digital Outputs iigital Output pT git Outputs 8 Table 3 MST200 ITEM numbers 12 MCB80 HANDHELD TERMINAL SCREEN ABBREVIATIONS The following is a description of each display and the meanings for the abbreviations used They are not necessarily listed below in the sequence that the screens may normally be entered The heading includes the title shown at the upper left corner of each screen in marks AI Analog Input Screen 1 8 The current value of the Analog Inputs 1 8 expressed in2. of input range DI Universal Input as digital data Screen 1 8 The current logic state of the 8 Universal Inputs are displayed as symbols Note the digital state should be ignored for any inputs being used as analog inputs AO Analog Output Screen 1 8 The current analog value sent from the Master to control analog or PWM type output via PID calculations are displayed If a channel is programmed for PID calculations then the value will be displayed in the proper units ie degF MA etc However if the channel is not programmed for PID the value will be displayed as a percent of full scale 0 10096 STAT Status input Screen 9 16 The status input state is displayed by Master numbering sequence PID PID Channel Monitor Screen IN The current value of the corresponding analog input which is used for control SP Current setpoint used for the channel ERR The percentage error between the setpoint and the actual analog input measurement expressed as a percent UPT The changing timer which times the update of the PID calculations and the output changes INT The changing timer which times the PID Integral calculations TGT The theoretical output when the ERR 0 This changes when an Integral calculation is done For a well designed system this value should stay close to 50 If this value drifts below 20 or above 80 it could mean that 13 OUT the control system may not have enough control ra
3. 3 Network Address switch 3 see Table 2 below 4 Network Address switch 4 see Table 2 below 5 Network Address switch 5 see Table 2 below 6 Network Baud Rate OFF 2400 ON 9600 7 Network Fail Detect Delay OFF 60 min ON 5 min 8 Digital Output Staging delay at power up OFF 2 sec ON 15 sec Network Address Settings Table 2 Network Address SW1 Settings Switch SW2 is used to select the Normally open closed setting of each Digital Outputs A setting of Normally open NO means that when the MCB80 turns a Digital Output ON the output device relay or other device ENERGIZES A setting of Normally closed NC means the opposite when the MCB80 turns a Digital Output ON the output device DE ENERGIZES The same logic applies when the RLY80 board is used the on board relays energize and de energize in the same way Switch set SW2 1 NO NC setting for DO 1 OFF NO ON NC 2 NO NC setting for DO 2 OFF NO ON NC 3 NO NC setting for DO 3 OFF NO ON NC 4 NO NC setting for DO 4 OFF NO ON NC 5 NO NC setting for DO 5 OFF NO ON NC 6 NO NC setting for DO 6 OFF NO ON NC 7 NO NC setting for DO 7 OFF NO ON NC 8 NO NC setting for DO 8 OFF NO ON NC Switch SW3 is used to select whether the corresponding DI input is used to monitor the status of the load connected to the same numbered DO If yes is selected the MCB80 monitors the state of the DI and if the DI is in the opposite state as the D
4. I SAC INTEGRATED SYSTEMS AND CONTROL INC User Manual MCBSO INTEGRATED SYSTEMS AND CONTROLS INC Product Users Manual Integrated Systems and Control Inc PO Box 7682 Auburn CA 95604 Phone 530 878 9038 Fax 530 878 9137 Revised 3 28 2001 Table of Contents General Specifications Installation Operation c uw UJ General The MCB80 Remote Control Board is designed to be a network slave attached to an ISAC Control Network It provides for the Network Master digital and analog inputs and outputs as well as some dedicated control capability independent of the Network Master The MCB80 is powered by an external 24VAC transformer and interfaces with SVDC and 24VDC analog and digital input output devices J3 JU1 8 Status LED s TBI trerrere gt f TB2 TB3 SW3 SWI SW2 MCB80 Control Board Specifications MCB80 Board Size Height 5 75 Width 8 0 and Depth 3 0 w RLY80 Input Power 24VAC at 1 0 Amp including RLY80 Relay Board option There is an on board 1 6 Amp fuse and power switch Termination s for power are at TB3 There must be a common ground between all the network devices to prevent damaging the network interface circuitry The 24VAC RET circuit should be securely connected to earth ground on ALL MCB80 and the MST200 must also be securely grounded to the same earth ground to prevent damage to the network circuitry Output Power Terminals are provided on the board for providi
5. KING switching to DC RET loads of a maximum of 50 milliamperes at 24VDC This is sufficient power to switch most general purpose 24VDC relays and contactors If the optional RLY80 Relay board is installed output relays and manual AUTO ON OFF override switches are provided The eight red LED lights labeled 1 8 on the MCB80 board represent the logical state of the eight digital outputs 24VDC Typical Digital Output w o RLY80 board Analog Outputs The MCB80 provides up to two 2 4 20ma analog outputs These outputs source current for an external transducer Normally the external transducer contains either a 250 Ohm or 500 Ohm load resistor which will convert the 20ma maximum output value to 5 0VDC or 10 0VDC respectively 24VDC xc AOH RET Typical Analog Output Typical 4 20ma Transducer Handheld Terminal Port The RJ11 telephone type connector J2 is used to connect the MCB80 to the optional Handheld Terminal This terminal device allows the user to monitor and modify the configuration settings of the MCB80 These configuration settings are also monitored and modified using the Network Master MST200 RLY80 Port The MCB80 is equipped with a ribbon cable connector J3 that is used to connect a RLY80 Relay board to the MCB80 This cable provides power and signals to operate the RLY80 board The BD OK Relay This relay is provided for use as a signal to other equipment that the microprocessor or memory of the
6. MCB80 has failed The MST200 Network Master will independently diagnose a failure due to the failed MCB80 not responding to inquiries on the Network This relay s contacts are rated for 24VAC or 24VDC at 2 Amps maximum DIP Switches Located along one edge of the MCB80 Board are three sets of switches eight switches in each set Switch set SW1 is used to set the network address and network baud rate Switch set SW2 is used to set the Normally Open Normally Closed action of each of the digital outputs Switch set SW3 is used to set for each of the digital outputs whether the corresponding digital input is being used as a Status indication of the equipment controlled by the digital output Installation MCB80 Summary of Connections The terminal strips connectors and jumpers of the MCB80 board are described below TB1 TB2 and TB3 Connections TB1 Function TB2 Funetion pom 0 Lh Rete DC sus Jam 12 frerteumiorvDCsmp 5 fireransum 3 CPover Supp fam 4 fawpereerssy s fam fs fom s firer O pm owe 7 po s fam fe ps 5 fireren fs BOR m fam f me i fam flau pe p fireren f e B9 5 memsorrowersu LLL S TemierRweruny 1 frr Ls TemisowrSusy 3 mera E Lr AOR Gouceof420macunen 3 3VACwerwdekud 19 24
7. O a Failure condition is sent to the Network Master MST200 on the next polling cycle The MCB80 waits for 30 seconds after any change of the output before beginning to monitor the status DI Switch set SW3 1 Use DI 1 for status of DO 1 OFF no ON yes 2 Use DI 2 for status of DO 2 OFF no ON yes 3 Use DI 3 for status of DO 3 OFF no ON yes 4 Use DI 4 for status of DO 4 OFF no ON yes 5 Use DI 5 for status of DO 5 OFF no ON yes 6 Use DI 6 for status of DO 6 OFF no ON yes 7 Use DI 7 for status of DO 7 OFF no ON yes 8 Use DI 8 for status of DO 8 OFF no ON yes 10 Operation The MCB80 is mostly used for remote inputs and outputs of a networked control system At ISAC the Network Master is the MST200 Master Up to 128 MCB80 s can be connected to the ISAC Network 32 board per network channel 4 network channels on the MST200 Independent of the Network commands the MCB80 can perform some functions on it s own The MCB80 BD OK light is located between TB2 and TB3 This green colored LED is normally lit while the MCB80 is powered up and working properly If the board detects a problem with it s microprocessor or memory this LED will blink and the on board BD OK Relay will turn on and off at the same rate Wiring the output contacts of the BD OK Relay to an external alarm light will cause it to blink on and off when the board has failed Since the BD OK Relay is normally energized the NO contact w
8. ange MCB80 settings This terminal device may be connected to the MCB80 board via J2 at any time regardless of whether the MCB80 is powered up or not Once connected and after a 1 to 12 second delay the LCD display of the Handheld terminal will display a Main Menu A full ASCII keyboard is provided on the terminal there are some special function keys that have been specially programmed at ISAC s factory to perform needed functions The F1 key is used to escape or back out of 11 the current screen without accepting the changes made if any The F5 key is used to move the cursor from field to field like the function of a TAB key MCB80 ITEM NUMBERS USED BY THE MST200 NETWORK MASTER When defining inputs and outputs located on the MCB80 board in the MST200 Master each input output and information data point is referred to by means of an ITEM number Each type of input and output has it s own list of ITEM numbers For example when defining the Status Input 1 of the MCB80 in a MST200 DIGITAL INPUT DEFINITION the user would enter 12 as the input number Item after specifying the channel and panel board network address of the MCB80 The following tables list the MST200 ITEM number for each of the data points of the MCB80 that can be accessed MCB80 data point MST200 MCB80 data point MST200 ITEM ITEM Master Panel OVR Input 1 Amdoglpu 1 pnotused 2 Analogdnput2 2 pnotused
9. e interval sec Derivative rate percent This is the percent error detected by the system at which the derivative calculation will add a correction Type of DDC output Pulse or Analog P A Note that there are only 2 true analog outputs on the MCB80 so only channels 1 and 2 may be true analog the other channels may be pulse type only Direction of the control output I D If an T is entered the control expects that the output 14 current will have to increase in order to make the input value being monitored increase in value Enter D for the opposite effect R Range of analog output only affects true analog outputs Enter 0 for 0 20 milliamperes and 4 for 4 20 milliamperes MNPW Minimum pulse width For use with pulse width output channels only Defines the shortest possible pulse usually 0 seconds MXPW Maximum pulse width For use with pulse width output channels only Defines the maximum pulse possible 1 32 seconds PID3 PID Configuration Screen 3 CH Shows the current channel being configured Changing this value allows all 8 channels to be programmed minimum and maximum of the following is entered OUT The scaling limits for the output in units of the process such as PSI MA or This scaled value appears in the PID monitoring screen and is sent back to the Master via the network IN The scaling limits for the input channel used for PID calculations This is the input value expected
10. ill be closed and the NC contact will be open during normal operation When the Master Panel Input is activated TB 1 20 by connecting it to RET through an external switch the Digital Outputs will go to a predefined Master Panel Override State and remain in that state indefinitely The Master Panel Override States may be programmed using the MST200 s features or through the use of the Handheld Terminal plugged directly into the MCB80 When the Network Master is off line not scanning regularly the MCB80 will wait a delay of 5 minutes or 60 minutes depending on a setting of SW1 the Digital Outputs will go to a predefined Master Fail State and remain in that state indefinitely When the MCB80 is powered up it staggers the setting of it s Digital Outputs with either a 2 second or 15 second delay depending on a setting of SW1 Analog outputs may be programmed to control a closed PID algorithm This PID loop control function will continue regardless of whether the Network Master is on line or not To use this closed loop PID feature the corresponding Analog Input to either an Analog Output 4 20ma or Digital Output Pulse width modulated is used as the control variable measurement input See other sources for an explanation of how a PID algorithm works Input AE is used with AO 1 or DO 1 input AI 8 is used with DO 8 only 2 AO s exist PID channels 2 8 only use Pulse Width Modulation The Handheld terminal may be used to monitor and ch
11. ng power for external sensors and output relays A 24VDC terminal is available on TB2 for providing a maximum of 0 2 Amp if the optional RLY80 Relay board is used or a maximum of 0 4 Amp if the RLY80 board is not used for external 4 20ma sensors transducers and relays Universal Inputs The MCB80 provides up to eight 8 inputs that may be used as either analog or digital inputs Jumpers JU1 8 are provided to select the input configuration Analog signals of 0 5VDC or 4 20ma may be connected as well as Thermistor 10K at 77 deg F temperature sensors Alternately a dry contact closure may be connected between the input and IRET See the jumper selections described below Typical 4 Al 1 JU1 B 4 20ma Al 2 JU1 none 0 5vdc IRET Al 1 JU1 none Thermistor Typical Analog Inputs Digital Inputs If the RLY80 Relay board option is installed up to eight 8 24VDC digital inputs may be connected to TB1 of the RLY80 board Use good quality contacts in the field mounted digital sensor since only a 5ma current is flowing into the Digital Input when the field switch is closed Without the optional RLY80 Relay board installed the Universal inputs must be used for digital sensors Input Switch Al 1 Al 2 JU2 A IRET Typical Digital Input Universal Input AUS Digital Outputs The MCB80 provides up to eight 8 24VDC SINKING transistor digital outputs for the control of external loads Each output is capable of SIN
12. nge to maintain the setpoint properly This is the analog output value that is being used To manually change the output value the AO Screen value must be changed PID1 PID Configuration Screen 1 CH DDC Shows the current channel being configured Changing this value allows all 8 channels to be programmed Direct digital control flag if set to N no the corresponding digital output may be used for normal ON OFF control UDT Update time of PID control loop sec LLM Low limit of the analog or pulse width output HLM High limit of the analog or pulse width output DSP OSP Default setpoint used in the event that a valid setpoint is not received from the Master Override setpoint used when a status input is configured for override operation of a PID channel and the input is activated HLDSP Current setpoint is held in the event of a network failure enable Y N PID2 PID Configuration Screen 2 CH Shows the current channel being configured Changing this value allows all 8 channels to be programmed CLSLP Closed loop enable Y N If this is set to N PB DR then the setpoint is interpreted as a percent and the output is controlled as a strictly proportional P only control The Integral and Derivative influence are disabled The control is done on a percent basis Proportional band The proportional band is expressed as a percent of the total input range Integral updat
13. vDCPowerSupply 5 NC contact of the OK relay 20 Master Panel Override 6 NO contact of the OK relay mom 1 m nmoksm PP 5 WewekSmag LLL a NeworkConmon Table 1 Terminal Strip Functions J1 expansion Currently this connector is not used It is reserved for future use J2 Handheld Terminal Used to connect the ISAC Handheld Terminal for monitoring and modification of board settings J3 RLY80 board connector When the optional RLY80 Relay board is used plug the 20 conductor ribbon cable into this connector Note that when the RLY80 Relay board is used the terminals for Digital Outputs on TB2 cannot be used as the operation of the RLY80 board may be interfered with Option Jumpers of the MCB80 JUI 2 pos jumper for Al 1 A DI B 4 20ma NONE 0 5VDC or Thermistor JU2 2 pos jumper for AT 2 A DI B 4 20ma NONE 0 5VDC or Thermistor JU3 2 pos jumper for AI 3 A DI B 4 20ma NONE 0 5VDC or Thermistor JU4 2 pos jumper for Al 4 A DI B 4 20ma NONE 0 5VDC or Thermistor JUS 2 pos jumper for AI 5 A DI B 4 20ma NONE 0 5VDC or Thermistor JU6 2 pos jumper for Al 6 A DI B 4 20ma NONE 0 5VDC or Thermistor JU7 2 pos jumper for AI 7 A DI B 4 20ma NONE 0 5VDC or Thermistor JU8 2 pos jumper for AI 8 A DI B 4 20ma NONE 0 5VDC or Thermistor JU10 MUST BE INSTALLED Switch set SW1 1 Network Address switch 1 see Table 2 below 2 Network Address switch 2 see Table 2 below
14. when the input terminal voltage is at 0 and SVDC FAIL Configuration Network Fail State for Outputs 1 8 Each digital output channel may be programmed to be forced to a defined state in the case that the Trinet network does not operate for more than 2 hours The choices are O on F off and N zno change MST Configuration of Master Override State for Outputs 1 8 Each digital output channel may be programmed to be forced to a defined state in the case that the Master digital input is activated The choices are O on or F off UNIV Configuration of Analog Sensor Type 1 8 Each Universal input that is configured hardware for use as an analog input may be set for a linear sensor type or for a Precon 10K Thermistor which requires linearization in the MCB80 The choices are L linear or T Thermistor 15 STS Configuration of Status Inputs 1 8 Each digital status input may be programmed to act as a direct override general purpose digital input or as a true status for the corresponding digital output The choices are G general purpose S status input or O direct override MODE Configuration of Override Mode for Outputs 1 8 Each digital status input may be programmed to act as a direct override on the corresponding digital output The choices are O disable 1 8 30 min interval timer or 14 sweep off operation 16
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