ABB Procontic CS31 Intelligent Distributed Automation System

ABB Procontic CS31 Intelligent Distributed Automation System

System Overview

Positioning and advantages: CS31 is a distributed automation system that simplifies the wiring and implementation of industrial control through a decentralized architecture, reducing costs (up to 80% of wiring costs can be reduced), and is suitable for scenarios with high modular requirements and cost sensitivity. Its core advantages include modular design, flexible expansion, powerful diagnostic capabilities, support for online expansion units, and remote I/O channels that can be programmed like centralized devices.

Composition structure: It consists of a central processing unit (CPU), a remote input/output unit (I/O), and an RS485 twisted pair bus. The central unit can be installed in the control cabinet, while the I/O unit can be installed nearby sensors and actuators.

Hardware components

Central Processing Unit (CPU)

Model, main features, power options

07 KR 31 2K: User Program (EEPROM), 12 channel 24VDC input, supports high-speed counting (10kHz), RS485 bus 24VDC, 120VAC, 230VAC

07 KT 31: Similar to 07 KR 31, the output is 8-channel 24VDC/0.5A transistor output 24VDC, 120VAC, 230VAC

07 KR 91：7K FLASH EPROM， 20 channels of 24VDC input, 12 channels of relay output, supporting advanced functions such as PID 24VDC, 115/230VAC

07 KT 92：14K FLASH EPROM， 4 analog inputs (12 bits), 2 analog outputs (12 bits), supporting ARCNET 24VDC, 120/230VAC

07 KT 93:24 channels 24VDC input, 16 channels 24VDC/0.5A transistor output, supports high-speed counting (10kHz) 24VDC

UCZA/UCZB: 8K/16K instructions, supports dual CS31 bus expansion, suitable for large systems 24VDC, 120VAC, 230VAC

Remote I/O unit

Binary input units: such as ICSI 08 D1 (8-channel 24VDC non isolated input), ICSI 16 E1 (16 channel 24VDC isolated input), supporting input delay configuration (2-32ms).

Binary output units: such as ICSO 08 R1 (8-way relay output, 250VAC/2A), ICSO 16 N1 (16 way 24VDC/0.5A transistor output, short-circuit protection).

Hybrid I/O units: such as ICSK 20 F1 (12 24VDC inputs+8 relay outputs), ICFC 16 L1 (16 configurable inputs/outputs, 24VDC/0.5A).

IP65 protection unit: such as ICPI 16 D1 (16 channel 24VDC input, IP65), ICPO 16 H1 (16 channel 24VDC/2A output, IP65）， Suitable for harsh environments.

Analog unit:

Input: ICSE 08 A6 (8 voltage/current channels, 8-bit resolution), ICST 08 A8 (8 PT100 temperature channels, -50~150 ℃).

Output: ICSA 04 B5 (4-channel voltage/current, 12 bit resolution).

Mixed: ICSM 06 A6 (4 inputs+2 outputs, 8-bit).

Special element

High speed counter ICSF 08 D1: supports 3 high-speed counting channels (up to 50kHz), 3 counting modes (incremental encoder, addition and subtraction counting, etc.), and 7 transistor outputs for threshold triggering.

Remote display TCAD: 2-line 32 character display, 127 programmable messages, supports buzzer alarm.

Bus amplifier: NCB (extending the bus to 2km), NCBR (redundant amplification to improve reliability).