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Application sequences, 1 saving and restoring the configuration setting – KROHNE MFC 400 Modbus User Manual

Page 28

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6

APPLICATION SEQUENCES

28

MFC 400

www.krohne.com

05/2013 - 4002525102 - AD Modbus MFC 400 R02 en

6.1 Saving and restoring the configuration setting

The example assumes slave address 1 for Modbus telegram.

1

Start

2

Change Configuration

2a

Write Holding Register(s)

2b

[changes done]

3a

[discard]

3b

[apply]

4

Discard Changes

4a

Set Coil 1003 (0x03EB)
MB-Telegram: 01 05 03 EB FF 00 + CRC

5

Previous configuration retained

6

Apply Changes

6a

Set Coil 1002 (0x03EA)
MB-Telegram: 01 05 03 EA FF 00 + CRC

7

New configuration applied