Pilz PSSnet GW1 MOD-CAN - Manual (Page 17)

Function description
Operating Manual PSSnet GW1 MOD-CAN
1002693-EN-02
17
Block diagram
Connection to
Modbus/TCP
1x CANopen
24 V 0 V
Mapping
Power
Block diagram
Modbus/TCP
The Gateway can manage a max. of 8 Modbus/TCP connections. The Gateway is always
the connection Server. The connection Clients may be various devices, e.g. PC, control
system, display unit. They can access the Gateway simultaneously.
Port number "502" in the Gateway is set as the default for data exchange via a Modbus/
TCP connection.
Modbus/TCP data ranges (Server connections)
The product supports the following Modbus/TCP data areas:
Data area Modbus syntax Example
Coils (Bit)
0x00000 … 0x65535
[read/write]
0x[xxxxx] 0x00031
Discrete Inputs (Bit)
1x00000 … 1x65535
[read only]
1x[xxxxx] 1x08193
Input Register (Wort/16 Bits)
3x00000 … 3x65535
[read only]
3x[xxxxx] 3x00002
Holding Register (Wort/16
Bits)
4x00000 … 4x65535
[read/write]
4x[xxxxx] 4x00805
Modbus/TCP data areas
4.1.1
4.2
4.2.1