Interface Description
The IGSS32 PCA Adapter communication interface offers connection to SIMATIC S7/300 and S7/400 PLCs using a SIMATIC S7 PCA Adapter and a standard serial RS232 port. The SIMATIC S7 PCA Adapter connects directly to the CPU port on the PLC using MPI protocol. On the PC side the PCA Adapter connects to a standard serial RS232 port.
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 the communication link in relation to the present configuration.
Technical Data
| Electrical Interface | : | RS-232C (PC-side), MPI Network (PLC-side) |
| Protocol | : | S7-Protocol |
| Types of data | : | String, Fixed point 8, 16, 32, BCD 16, 32, IEEE float etc. |
| PLC types supported | : | Simatic S7/300 series and Simatic S7/400 series. |
| Addressing | : | Node (PLC), data type (Data Blocks, Input, Output, Flags, Timer and Counter), Type index, bit offset. |
| Supported platforms | : | Windows Vista, Windows XP, Windows 2003 Server, Windows 2000 |
| Max. telegram size | : | 256 bytes per telegram. |
| Transmission speed | : | 9600 to 115200 baud. |
| Communication mode | : | Half duples. |
| Max. number of channels | : | Up to 8 COM ports are currently supported. |
| Max. number of nodes | : | One per COM port. |
| PC hardware requirements | : | 1-8 standard serial ports (COM ports). SIMATIC S7 PCA Adapter or PCA Adapter from Systeme Helmholz GmbH (700-751-9VK11) |
| PC software requirements | : | None. |