The ABB CMA122, also cataloged as the CMA122 Distributed Control System (DCS) module, serves as the primary CMA122 DCS Module utilized to execute deterministic process control loops across ABB control systems platforms.
Hardware Specifications
Parameter
Specification
Model
CMA122
Brand
ABB
Origin
Sweden
Weight
Internal component baseline
Dimensions
80 mm x 120 mm
Operating Temp
-40 to +85 deg C
Power Consumption
System backplane-dependent
Operating Voltage
24 VDC
Product ID
3DDE300402
Communication Protocols
Ethernet, Modbus
Product Type
DCS Modules
Backplane Bus Communication Velocity and Network Determinism
The CMA122 interfaces natively with the system backplane to handle concurrent communication tasks across deterministic networks, including Ethernet and Modbus links. It mitigates channel-to-channel isolation degradation across a wide thermal profile (-40 to +85 deg C). The integrated processing core maintains stable I/O density scaling and steady processing cycles, ensuring firmware flash compatibility when deployed alongside legacy multi-node controller racks.
