ABB PCD231 Board Technical Specifications
The ABB PCD231 is a digital input/output module in the ABB Symphony Plus control system. It is part of the Harmony product series and is primarily used in industrial automation control applications.
Typical Applications
Power plant DCS systems
Process control equipment status monitoring
Safety interlock systems
Equipment start/stop control
CI853K01 3BSE018103R1
CI854AK01 3BSE030220R1
CI860K01 3BSE032444R1
CI855K01 3BSE018106R1
CI856K01 3BSE026055R1
CI862K01 3BUA000037R1
CI865K01 3BSE040795R1
CI857K01 3BSE018144R1
CI858K01 3BSE018135R1
Technical Specifications
Parameter Specification
Channel Type 16 digital inputs + 16 digital outputs
Input Voltage 24V DC/48V DC/125V DC (configurable)
Output Type Relay contacts (5A @ 250V AC)
Isolation Voltage 1500V AC (between channels)
Communication Protocol Communicates with the controller via the S100 I/O bus
Response Time ≤10 ms
Operating Temperature -20°C to +60°C
PM851K01 3BSE018168R1
PM856K01 3BSE0181048R1
PM860K01 3BSE018100R1
PM861AK01 3BSE018157R1
PM861AK02 3BSE018160R1
PM864AK01 3BSE018161R1
PM864AK02 3BSE018164R1
Hardware Features
(1) Physical Structure
Dimensions: Compliant with Symphony standard module dimensions
Front Panel:
Channel Status LED Indicators
Module Status Indicator (RUN/FAIL)
Terminal Block: Removable terminal block
DI810-3BSE008508R1
DI811-3BSE008552R1
DI814-3BUR001454R1
DI820-3BSE008512R1
DI821-3BSE008550R1
DI825-3BSE036373R1
DI830-3BSE013210R1
DI831-3BSE013212R1
DI840-3BSE020836R1
DI885-3BSE013088R1
DI890-3BSC690073R1
System Integration
(1) Installation Requirements
Must be installed in an ABB Symphony Plus rack
Supports hot-swapping (provided the system permits it)
Spacing between adjacent modules ≥ 10 mm (for heat dissipation)
(2) Software Configuration
Use the ABB Control Builder F engineering tool:
Add the PCD231 module in the hardware configuration
Set the input filter time (adjustable from 1 to 100 ms)
Configure the output hold state (fail-safe position)
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64635859 FS450R12KE3/AGDR-61C S
64635867 FS300R12KE3/AGDR-61C S
64635875 FS450R12KE3/AGDR-61C S
64717812 FS300R12KE3/AGDR-62C S
64717839 FS300R17KE3/AGDR-66C S
64781791 FS225R17KE3/AGDR-66C S
64781812 FS450R17KE3/AGDR-62C S
64783831 FS450R17KE3/AGDR-61C S
68313198 FS225R12KE3/AGDR-61C S
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Troubleshooting and Resolution
(1) LED Status Indicators
Indicator Status Meaning
RUN Solid Green Normal Operation
FAIL Red Module Failure
CHx Green Channel Active
(2) Troubleshooting Common Issues
Symptom Possible Cause Solution
Module not recognized Poor backplane contact Reinsert the module
Unstable input signal Power supply interference Check the 24V power supply filtering
Output contacts stuck together Excessive load Check the load current (<5A)
