# Slow SLC PLC Ethernet Messaging

**URL:** <https://forum.deltamotion.com/t/slow-slc-plc-ethernet-messaging/882>\
**Category:** Knowledge Base: Troubleshooting\
**Created:** [March 26, 2021, 11:18pm UTC](https://forum.deltamotion.com/t/slow-slc-plc-ethernet-messaging/882 "2021-03-26T23:18:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Paul\_Huumala](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/p/22d042/32.png) [@Paul\_Huumala](https://forum.deltamotion.com/u/Paul_Huumala)\
**Post date:** [March 26, 2021, 11:18pm UTC](https://forum.deltamotion.com/t/slow-slc-plc-ethernet-messaging/882/1 "2021-03-26T23:18:21Z")

</div>

**Problem:**  
We had a customer experience slow messaging communication between an RMC75E and an SLC Ethernet processor.

**Solution:**  
The SLC processor contains a bit that when set, processes 1 message command between scans. When not set, it processes all outstanding messages. We recommend setting the bit to 0 for fast communication.

 ![image](https://forum.deltamotion.com/uploads/default/original/1X/b7327e19ed14ea0ffb986fde60047746c60bbdee.png)