Interface Description
The IGSS32 Comli 31 communication interface offers connection to a large number of PLCs supporting the Comli 31 protocol e.g. SattControl’s SattCon range of PLCs. Comli 31 is a serial Master/Slave protocol which can run in point-to-point, star or multi-drop network configurations.
The communication interface supports both direct and dialled-up connections.
The IGSS32 system polls the PLC equipment cyclically according to one of four user-defined time intervals. The time intervals are configurable from 100 milliseconds to 999 seconds. The system automatically groups process data in data blocks – thus fully exploiting the communication link in relation to the present configuration.
Technical Data
| Electrical Interface | : | RS232, RS422 |
| Protocol | : | Comli 31 |
| Types of data | : | Analog, I/O Ram, Registers (16- and 32 bits), PLC clock |
| PLC types supported | : | All PLCs types supporting Comli 31 (or subset of Comli 31) e.g. SattControls range of SattCon PLCs. |
| Addressing | : | Node (PLC), block (DB), word (16 bit), bit offset (a whole number of words is read or written) |
| Supported platforms | : | Windows Vista, Windows XP, Windows 2003 Server, Windows 2000 |
| Max. telegram size | : | 64 bytes pr. Telegram |
| Transmission speed | : | Up to 115Kbaud depending on the PLC port speed. |
| Throughput | : | Up til 4 telegrams pr. Channel pr. Second (depending on available bandwidth). |
| Max. number of channels | : | Up to 8 COM ports are supported concurrently. |
| Max. number of nodes | : | 255 |
| PC hardware requirements | : | 1-8 standard serial ports (COM ports). Standard modem(s) if dialled-up is used |
| PC software requirements | : | None |