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Siemens MJ-4 Series Installation Manual
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Manual No. 21-115-527-024 rev02
MJ-4
TM
Communications Module
Fiber Optic and RS-232/485
Installation Manual for MJ-4A
TM
, MJ-X
L TM
and MJ-X
TM
Control Panels
Rxd
Txd
POWER
W
atchdog
Communications
R
S
-
2
32
/
4
85
Communications
Module
G
N
D
R
T
N
-+
R
x
d
T
x
d
C
T
S
R
T
S
Data
IN
OUT
MJ-4 Communications Module
2
Table of Contents
Default Chapter
3
Table of Contents
3
1 Introduction
5
Description
5
Led Indicators
5
2 Transmission Methods
5
Figure 1-1 Mj-4 Communications Module
5
Fiber Optic Transmission
6
Wire Transmission
6
Figure 2-1 Fiber Optic Network
6
Rs-232 Connection
6
Figure 2-3 Modem Connection
6
Rs-485 Configuration - Loop Network
7
Rs-485 Configuration - Star Network
7
3 Communication Protocols
8
4 Installing the Communications Module in Mj- 4 Control Panels
8
Removing the Mj-4 Rear Cover
8
Mounting the Communications Module
9
Figure 4-1 Mj-4 Rear Cover
9
Figure 4-2 Communications Module Installation
9
Setting the Communications Module Jumpers
10
Fiber Optic Interface
10
RS-232/485 Interface
10
Figure 4-3 Fiber Optic Interface Jumper Locations
10
Rs-232/485 Interface Jumper Locations
10
Table 4-1 Fiber Optic Interface Jumper Settings
10
Replacing the Mj-4 Rear Cover
11
Mounting the Communications Module Label
11
Figure 4-5 Mj-4 with Mj-4 Communications Module Label Installed
11
Able 4-2 Rs-232/485 Interface Jumper Settings
11
5 Installing the Communications Module in Mj-X Control Panels
12
Setting the Communications Module Jumpers
12
Mounting the Communications Module in Mj-X Control Panels
12
Mj-X Control Panel Rear Cover Figure 5-2 Communications Module Installation in Mj-X
13
Figure 5-3 Membrane Switch Cable Routing (Top down View)
13
6 Verifying the Communications Module Installation
14
Mj-X Communications Module Cable Routing
14
Performing the Initial Diagnostic Checkout
15
Performing the Loopback Diagnostic Test
15
7 Cabling the Communications Module to the Power System
16
Fiber Optic Cable Type
16
Fiber Optic Cable Lengths
16
Fiber Optic Connector
16
Fiber Optic Connections
17
RS-485 Twisted-Pair Cable
17
RS-485 Cable Type
17
RS-485 Cable Grounding
17
Figure 7-1 Fiber Optic Connections
17
Rs-485 Connection
17
Able 7-1 Rs-485 Cable Pecifications
17
RS-485 Connector
18
RS-485 Cabling Considerations
18
Figure 7-3 Screw Terminal Block Connector
18
Rs-485 Loop Topology
18
Rs-232 Connections
19
Figure 7-5 Communication Cable Routing
19
RS-232 Multi-Drop Wiring
20
Rs-232 Multi - Drop Configuration
20
Able 7-2 Rs-232 Intelligent Electronic Device Wiring
20
Table 7-3 Modem Wiring
20
Communications Module Configuration
21
Figure 7-8 Screw Terminal Connection
21
Table 7-4 Communications Menu Items
21
Communications Menu Item Descriptions
22
Rs-232 Connector Pinout
21
Rs-232/485 Connections
21
Troubleshooting Communications Problems
23
Using Leds to Help Diagnose Communications Problems
24
Using Mjxplorer to Troubleshoot Communications Problems
24
Mjx Plorer Troubleshooting Connections
24
8 Setting the Dnp Points
25
Using the Dnp Configure Program for a Custom Dnp Point Set
25
Selecting a Predefined Dnp Point Set
25
DNP Point Set for MJ-4A or MJ-4B
25
DNP Point Set for Other Control Panels
25
Small 2.X3
27
Simple
28
Metering
28
Active
30
Set 7
31
9 Communications Module Firmware Versions
38
Communications Module Firmware Version
38
Mj-Xl Communications Module Firmware Versions
38
10 Specifications
39
Physical Dimensions
39
Fiber Optic Link Interface Specifications
39
Rs-232/Rs-485 Interface
39
Other manuals for Siemens MJ-4 Series
Installation And Operation Manual
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Siemens MJ-4 Series Specifications
General
Product Type
Control Panel
Manufacturer
Siemens
Input Voltage
24 VDC
Protection Class
IP65
Dimensions
300 x 200 x 100 mm
Weight
2.5 kg
Series
MJ-4 Series
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