Name: Fonrich FR-DCMG-MMPS
Brand: Fonrich
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User Manual

Version 1.1

DC System Monitor：FR-DCMG-MMPS

丰郅（上海）新能源科技有限公司

Fonrich (Shanghai) New Energy Technology Co., Ltd.

Add: 1st Floor, Building 5, No.999 Jiangyue Road, Minhang District,Shanghai

Web: www.fonrich.com

Tel: +86 21 61679671

Email: sales@fonrich.com

Table of Contents2
Documentation Statement4
Product Description5
The Main Function5
Optional Module6
Terminal Description7
(Optional) PLC Expansion Module Terminal Description8
Ground Connection and RS485 Communication Shielded Wire9
Wiring Diagram of Monitoring Module10
(Optional)Plc System Network Wiring Diagram11
System Diagram11
Network Diagram12
Networking Diagram of the Gateway in the Inverter12
Networking Diagram of the Gateway in the Junction Box12
PLC Wiring in Combiner Box and Inverter13
UI Introduction14
Key Operation14
Boot Interface14
Current Interface14
PLC Status Interface15
Initial Interface Display15
Detailed Data Interface of Channel Current and Power Generation15
Parameter Settings16
Trip Self-Test Setting Interface17
Current Calibration Setting Interface18
System Information Display Interface18
Alarm Status Display Interface19
DC Arc Fault Alarm Interface19
Fault Alarm Clear Interface19
Alarm Information Management20
Items that Can Generate Alarms Can be Set20
Items that Can be Tripped by Setting20
Alarm Conditions20
Alarm Message21
Arc Alarm Strategy21
MODBUS Protocol Definition22
Communication Format Configuration22
Data Frame Format Description (Refer to Modbus RTU Standard)22
Function Code Description22
Register Description23
Register Description in Bit Units (Function Code 02)23
Register Description in Word Unit (Function Code 03 04 06)33
PLC Register40
Function Code 0340
Function Code 0645
The Data of PLC Node 1 Is as Follows, the Data of Other Nodes Are Similar46
Appendix48
Faq48
Document Revision Record49
Contact Us49

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Fonrich FR-DCMG-MMPS Specifications

General

Brand	Fonrich
Model	FR-DCMG-MMPS
Category	Monitor
Language	English

Fonrich FR-DCMG-MMPS User Manual

Table of Contents

Questions and Answers:

Fonrich FR-DCMG-MMPS Specifications