Goals and Symptoms

What is the maximum number of concurrent socket connections?

Causes and Fixes:

A maximum of 96 devices may be communicating with the processor adapter via the Ethernet at any one time.
This 96-device limit consists of:

• · up to 2 programming panels (one must be in monitor mode)
  · up to 14 general purpose Modbus server paths (ex. Incoming SCADA requests) (Server)
  · up to 16 MSTR elements which support Modbus read, write, or read/write commands (Client)
  · up to 64 cyclic configured data slave paths (I/O Scanner) (Client)