B&B Electronics MES1B, MES1A manual Advanced Modbus Protocol Settings Menu

Configuring the MES1A/B

MES1B for RS-485 two-wire operation, the CP1 parameter must be set for RS485 Enable to ensure Send Data Control is implemented.

No configuration is required in this section for MES1A converters.

To configure RS485 Enable in the Modem/Configurable Pin Settings section:

33.Type 3 at the Select Command or parameter set (1..4) to change: prompt. The CP1 Function prompt appears.

34.Type 4 to select RS485 Enable

35.To accept the change, press Enter

36.Press Enter three more times to exit the Modem/Configurable Pin Settings section of the Configuration Menu.

4)Advanced Modbus Protocol Settings

In the Advanced Modbus Protocol Settings section of the Configuration Menu you can configure:

•whether the Slave Address is fixed or used as received

•whether to Allow Modbus Broadcasts

•whether to Use MB/TCP 00BH/00AH Exception Responses

•whether to Disable Modbus/TCP Pipeline

•Character Timeout values

•Message Timeout values

•Serial TX delay after RX values

•whether to Swap 4x/0H to get 3x/1x register conversions

Figure 18. Advanced Modbus Protocol Settings Menu

Manual Documentation Number: MES1A/MES1B-2106m PN7138-rev001

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.comB&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com

28