Browse FAQs

What are the limitations of the Modbus TCP IO Scanner of a TM251MESE?

Published date: 05 September 2018

The limitation of the Modbus TCP IO Scanner of a TM251MESE are:
- maximum 64 channels divided between maximum 64 slaves.
Each channel has the following limitations:
- for Read/Write Holding Registers the maximum length is 125 read words  and 121 write words
- for Read Holding Registers the maximum length is 125 words
- for Write Multiple Registers the maximum length is 123 words

Was this helpful?

What can we do to improve the information ?

Can't find what you are looking for?

Reach out to our customer care team to receive information on technical support, assistance for complaints and more.