Overview¶
The MODBUS TCP bus module CI52x-MODTCP is used as decentralized I/O module in MODBUS TCP networks. The network connection is performed via 2 RJ45 connectors which are integrated in the terminal unit.
CI521-MODTCP
I/O channels properties:
- 4 analog inputs (1.0…1.3)
- 2 analog outputs (1.5…1.6)
- 8 digital inputs 24 VDC in 1 group (2.0…2.7)
- 8 digital outputs 24 VDC in 1 group (3.0…3.7)
Functionality
| Interface | ETHERNET |
| Protocol | MODBUS TCP |
| Power supply | from the process supply voltage UP |
| Supply of the electronic circuitry of the I/O expansion modules attached | Through the expansion bus interface (I/O bus) |
| Rotary switches | For setting the last BYTE of the IP (00h to FFh) |
| Analog inputs | 4 (configurable via software) |
| Analog outputs | 2 (configurable via software) |
| Digital inputs | 8 (24 VDC; delay time configurable via software) |
| Digital outputs | 8 (24 VDC, 0.5 A max.) |
| LED displays | For system displays, signal states, errors and power supply |
| External supply voltage | Via terminals ZP, UP and UP3 (process supply voltage 24 VDC) |
CI522-MODTCP
I/O channels properties:
- 8 digital configurable inputs/outputs in 1 group (1.0…1.7)
- 8 digital inputs 24 VDC in 1 group (2.0…2.7)
- 8 digital outputs 24 VDC in 1 group (3.0…3.7)
Functionality
| Interface | ETHERNET |
| Protocol | MODBUS TCP |
| Power supply | from the process supply voltage UP |
| Supply of the electronic circuitry of the I/O expansion modules attached | Through the expansion bus interface (I/O bus) |
| Rotary switches | For setting the last BYTE of the IP (00h to FFh) |
| Configurable digital inputs/outputs | 8 (configurable via software) |
| Digital inputs | 8 (24 VDC; delay time configurable via software) |
| Digital outputs | 8 (24 VDC, 0.5 A max.) |
| LED displays | For system displays, signal states, errors and power supply |
| External supply voltage | Via terminals ZP, UP and UP3 (process supply voltage 24 VDC) |
The inputs/outputs are electrically isolated from the ETHERNET network. There is no potential separation between the channels.
The configuration of the inputs/outputs is performed by software.
For usage in enhanced ambient conditions (e.g. wider temperature and humidity range), a special XC version of the device is available.