How to print variable data via RS232 on the CM750

This guide explains how to send product-specific data to your CM750 over RS232, including barcodes, batch numbers, and timestamps.

Why use variable data printing?

• Assign unique codes per product

• Traceability for pharmaceuticals or food

• Real-time updates from ERP or MES systems

• Automated shift or batch code generation

How to do it

1. Create a message with a variable field in the CM750 editor

2. Assign a field ID (e.g. V1, V2) to placeholders

3. Via RS232, send formatted command:

   sql
   SET V1=ABC123456

   PRINT


4. Printer inserts ABC123456 into the designated field

5. You can send updated values per product or per shift

Supported field types

• Text

• Counters

• Time/date stamps

• Barcodes (with valid formatting)