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Appendix – KROHNE MFC 400 Modbus User Manual

Page 35

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APPENDIX

8

35

MFC 400

www.krohne.com

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

Function Code 0x10: Write Multiple Registers

Function Code 0x2B: Encapsulated Interface Transport 0x0E Read Device Identification

Request

Response

Error

Function

0x10

Function

0x10

Function

0x90

Starting Address

Hi

0x00 to 0xFF

Starting Address

Hi

0x00 to 0xFF

Exception Code

0x01 / 0x02 /

0x03 / 0x04

Starting Address

Lo

0x00 to 0xFF

Starting Address

Lo

0x00 to 0xFF

Quantity of

Registers Hi

0x00

Quantity of

Registers Hi

0x00

Quantity of

Registers Lo

0x01 to 0x7B

Quantity of

Registers Lo

0x01 to 0x7B

Byte Count

2 * n (0x02 to

0xFF)

Register n Value

Hi

0x00 to 0xFF

Register n Value

Lo

0x00 to 0xFF

...

...

Request

Response

Error

Function

0x2B

Function

0x2B

Function

0xAB

MEI Type

0x0E

MEI Type

0x0E

Exception Code

0x01 / 0x02 /

0x03 / 0x04

Read Device ID

Code

0x01 / 0x02

(0x03 / 0x04)

Read Device ID

Code

0x01 / 0x02

(0x03 / 0x04)

Object ID

0x00 to 0xFF

Conformity Level

0x02 (0x01 /

0x03 / 0x04)

More Follows

0x00 (or 0xFF)

Next Object ID

0x00 to 0xFF

Number of

Objects

0x01 to 0x07

(0xFF)

Object n ID

0x00 to 0xFF

Object n length

0x00 to 0xFF

Object n value

n (1...254 bytes)

...

...