The 2573-MOD provides support for communicating with serial and Modbus
plant floor devices such as modems, bar code readers, scales, displays,
printers, and other PLCs.

Features
• Provides 4 serial ports, each providing RS-422. RS-485 and RS-232 electrical
interfaces. All ports operate concurrently and independently.
• Enables the PLC to act as a master or slave for devices which use Modbus
RTU or ASCII protocols
• Task Code Master support allows the local PLC to access memory in other
2500 Series® or Simatic® 505 PLCs
Application Notes
• 2573-TCM2 to Mettler/Toledo PG5001 Scale
• Upgrading from a Siemens® Simatic® 505-5184 Module
• 2573-TCM2 to Ohaus IP Series High Capacity Precision Toploaders
• 2573-TCM2 to Mettler/Toledo SM3000 Scale
• 2573-MOD to 3300 ACM Digital Power Meter
• 2573-TCM2 to MTS Digital Access Tank Gauge
• 2573-MOD to S7-200 PLC
• Distributed PID Temperature Control From a PLC using Eurotherm Series
2000 PID Temperature Controllers with Modbus RTU Communications
• Using the CTI 2573-MOD Serial Interface Adapter with Microwave Data
Systems Master/Remote Radios
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