Electrical ConnectionΒΆ
The CS31 Bus Module CI592-CS31 is plugged on the CS31 Terminal Unit TU551-CS31 or TU552-CS31 Terminal Units TU551-CS31 and TU552-CS31 for CS31 Bus Modules. Hereby, it clicks in with two mechanical locks. The Terminal Unit is mounted on a DIN rail or with 2 screws plus the additional accessory for wall mounting (TA526 Wall Mounting Accessory TA526).
Note
Mounting, disassembling and electrical connection for the Terminal Units and the I/O modules are described in detail in S500 System Data AC500 System Data and System Construction.
The electrical connection is carried out by using the 40 terminals of the Terminal Unit TU551-CS31/TU552-CS31. It is possible to replace the CI592-CS31 without loosening the wiring.
The assignment of the terminals:
| Terminal | Signal | Meaning |
|---|---|---|
| 1.0 | R1 | Integrated termination resistors for CS31-Bus, Terminal 1 |
| 1.1 | R2 | Integrated termination resistors for CS31-Bus, Terminal 2 |
| 1.2 | B1 | CS31-Bus, bus line 1 |
| 1.3 | B2 | CS31-Bus, bus line 2 |
| 1.4 | FE | Functional earth |
| 1.5 | B1 | CS31-Bus, bus line 1 |
| 1.6 | B2 | CS31-Bus, bus line 2 |
| 1.7 | FE | Functional earth |
| 1.8 | UP | Process voltage UP (24 V DC) |
| 1.9 | ZP | Process voltage ZP (0 V DC) |
| 2.0 | DI0 | Signal of the digital input DI0 |
| 2.1 | DI1 | Signal of the digital input DI1 |
| 2.2 | DI2 | Signal of the digital input DI2 |
| 2.3 | DI3 | Signal of the digital input DI3 |
| 2.4 | DI4 | Signal of the digital input DI4 |
| 2.5 | DI5 | Signal of the digital input DI5 |
| 2.6 | DI6 | Signal of the digital input DI6 |
| 2.7 | DI7 | Signal of the digital input DI7 |
| 2.8 | UP | Process voltage UP (24 V DC) |
| 2.9 | ZP | Process voltage ZP (0 V DC) |
| 3.0 | AI0+ | Plus pole of analog input signal 0 |
| 3.1 | AI1+ | Plus pole of analog input signal 1 |
| 3.2 | AI2+ | Plus pole of analog input signal 2 |
| 3.3 | AI3+ | Plus pole of analog input signal 3 |
| 3.4 | AI- | Minus pole of analog input signals 0 to 3 |
| 3.5 | AO0+ | Plus pole of analog output signal 0 |
| 3.6 | AO1+ | Plus pole of analog output signal 1 |
| 3.7 | AO- | Minus pole of analog output signals 0 and 1 |
| 3.8 | UP | Process voltage UP (24 V DC) |
| 3.9 | ZP | Process voltage ZP (0 V DC) |
| 4.0 | C8 | Signal of the configurable digital input/output C8 |
| 4.1 | C9 | Signal of the configurable digital input/output C9 |
| 4.2 | C10 | Signal of the configurable digital input/output C10 |
| 4.3 | C11 | Signal of the configurable digital input/output C11 |
| 4.4 | C12 | Signal of the configurable digital input/output C12 |
| 4.5 | C13 | Signal of the configurable digital input/output C13 |
| 4.6 | C14 | Signal of the configurable digital input/output C14 |
| 4.7 | C15 | Signal of the configurable digital input/output C15 |
| 4.8 | UP | Process voltage UP (24 V DC) |
| 4.9 | ZP | Process voltage ZP (0 V DC) |
Caution
:strong:Risk of damaging the PLC modules!
The PLC modules must not be removed when the plant is powered on.
Make sure that all voltage sources (supply and process voltage) are switched off before you are removing or replacing a module.
Caution
:strong:Risk of damaging the PLC modules!
The PLC modules can be damaged by overvoltages and short circuits.
Make sure that all voltage sources (supply and process voltage) are switched off before you are beginning with operations at the system.
Caution
:strong:Risk of imprecise and faulty measurements!
Analog signals may be distorted seriously by external electromagnetic influences.
Use shielded wires when wiring analog signal sources. The cable shield must be grounded at both ends of the cable. Provide a potential equalisation of a low resistance to avoid high potential differences between different parts of the plant.
Terminal assignment of the CS31 Bus Module CI592-CS31
The module provides several diagnosis functions CS31 Bus Module CI592-CS31 with Digital and Analog Inputs and Outputs.
- Connection of the digital inputs
- Connection of the configurable digital inputs/outputs
- Connection of resistance thermometers in 2-wire configuration to the \ analog inputs
- Connection of resistance thermometers in 3-wire configuration to the \ analog inputs
- Connection of active-type analog sensors (voltage) with electrically \ isolated power supply to the analog inputs
- Connection of active-type analog sensors (current) with electrically \ isolated power supply to the analog inputs
- Connection of active-type analog sensors (voltage) with no electrically \ isolated power supply to the analog inputs
- Connection of passive-type analog sensors (current) to the analog inputs
- Connection of active-type analog sensors (voltage) to differential \ analog inputs
- Use of analog inputs as digital inputs
- Connection of analog output loads (voltage)
- Connection of analog output loads (current)
- Connection of the CS31 Bus