Maximum Numbers of Sockets \ per Protocol

Maximum Numbers of \ Sockets per Protocol up to Firmware V2.3.x
No. Description CPU up from CPU firmware revision
    PM55x-ETH PM56x-ETH PM573-ETH PM583-ETH PM590-ETH PM591-ETH PM592-ETH
8 MODBUS TCP Slave 12 12 12 12 12 12 12 V2.0.2
11 UDP no AC31 header 12 12 12 12 12 12 12 V2.0.2
13 Web server on PLC with web visualization and JAVA applet 7 7 9 18 25 25 25 V2.0.6
14 Web server on PLC with support of JAVA script (no applet) 7 7 9 18 25 25 25 V2.1.3
19 FTP server 2 2 2 2 4 4 4 V2.1.3

Maximum Numbers of \ Sockets per Protocol as of Firmware V2.4.x

No. Description CPU CM up from CPU firmware revision
    PM55x-ETH PM56x-ETH PM573-ETH PM583-ETH PM585-ETH PM590-ETH PM591-ETH PM591-2ETH PM592-ETH PM595-4ETH CM597-ETH
8 MODBUS TCP Slave 12 12 12 12 12 12 12 24 12 24 12 V2.0.2
11 UDP no AC31 header 12 12 12 12 12 12 12 24 12 24 12 V2.0.2
13 Web server on PLC with web visualization and JAVA applet 7 7 9 18 25 25 25 50 25 50 0 V2.0.6
14 Web server on PLC with support of JAVA script (no applet) 7 7 9 18 25 25 25 50 25 50 0 V2.1.3
19 FTP server 2 2 2 2 4 4 4 8 4 8 0 V2.1.3

Note

The total number of sockets used by following protocols (over all Interfaces) must not exceed 32:

  • UDP data exchange
  • UDP no AC31 Header
  • ABB netConfig
  • Online with ABB TCP/IP Level 2AC (listen, connected, routing)
  • SNTP (onboard only)
  • SMTP (onboard only)
  • MODBUS Client
  • MODBUS TCP server

Note

For CPUs with multiple Onboard ETHERNET interface (e.g. PM591-2ETH, PM595-4ETH) the maximum number of sockets per protocol is the sum for all ETHERNET interfaces.

Example: Max number of MODBUS TCP server for PM591-2ETH is 24. If 1stETHERNET interface ETH1 uses 11 MODBUS server connections, the 2ndETHERNET interface can use as maximum 13 MODBUS server connections.

Note

The usage of the sockets can be shown in the PLC browser or by using the command: coupler     settings