GE MM300 Manual page 147
Motor management system/low voltage motor protection and control
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Also See for MM300:
- Instruction manual (198 pages) ,
- Quick start manual (77 pages) ,
- Installation recommendations (21 pages)
Table of Contents
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CHAPTER 4: FIELDBUS INTERFACE
MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE
ATTRIBUTE
DESCRIPTION
(HEX VALUE)
61
Field Start Ctrl
62
Field Stop Mode
63
Field Stop Action
64
Field 2W/3W
65
MCC Start Ctrl
66
MCC Stop Mode
67
MCC Stop Action
68
Test Auto Mode
69
Test Manual Mode
6A
External Stop Action
6B
Auto Manual Key
6C
NTP IP address 1
6D
NTP IP address 2
6E
Ethernet IP address 1
6F
Ethernet IP address 2
70
Ethernet Subnet Mask 1
71
Ethernet Subnet Mask 2
72
Ethernet Gateway Addr 1
73
Ethernet Gateway Addr 2
74
IL A Name 1
75
IL A Name 2
76
IL A Name 3
77
IL A Name 4
78
IL A Name 5
79
IL A Name 6
7A
IL A Name 7
7B
IL A Name 8
7C
IL A Name 9
7D
IL A Name 10
7E
IL B Name 1
7F
IL B Name 2
80
IL B Name 3
81
IL B Name 4
82
IL B Name 5
83
IL B Name 6
84
IL B Name 7
85
IL B Name 8
86
IL B Name 9
87
IL B Name 10
UNIT
FORMA
MI
MAX
T CODE
N
None
FC126
0
1
None
FC172
0
1
None
FC174
0
1
None
FC173
0
1
None
FC126
0
1
None
FC172
0
1
None
FC174
0
1
None
FC175
0
2
None
FC175
0
2
None
FC174
0
1
None
FC126
0
1
None
FC150
0
0xFFFF
None
FC150
0
0xFFFF
None
FC150
0
0xFFFF
None
FC150
0
0xFFFF
None
FC150
0
0xFFFF
None
FC150
0
0xFFFF
None
FC150
0
0xFFFF
None
FC150
0
0xFFFF
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
None
F22
DEVICENET PROTOCOL
FACTOR
SIZE IN
Y
BYTES
DEFAUL
T
0
2
0
2
0
2
1
2
0
2
0
2
0
2
1
2
0
2
0
2
0
2
0
2
0
2
0
2
0
2
0xFFFF
2
0xFC00
2
0
2
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4–69
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Need help?
Do you have a question about the MM300 and is the answer not in the manual?
Questions and answers
we have a problem with device MM300. it says that the device is invalid through the software and does not read the device. the communication is through RS 485. is it possible to give us an advice or send us some reccomendations or instructions?
For a GE MM300 device that is not recognized by software and communicates via RS485, follow these troubleshooting steps:
1. Ensure correct RS485 wiring:
- Use two-wire RS485 in a daisy chain configuration.
- Install a 120 Ohm resistor in series with a 1 nF ceramic capacitor at each end of the link.
- Use shielded wire and ground the shield at only one location.
2. Check device addressing and termination:
- Confirm proper device address and ensure no address conflicts.
- Verify that termination networks are correctly installed at both ends.
3. Confirm half-duplex communication:
- Ensure that the system supports half-duplex communication and not sending and receiving data simultaneously.
4. If using USB for setup (e.g., USB-to-RS485 converter) and the device is not recognized:
- Repeat the connection procedure 2–3 times.
- If still not recognized, uninstall the USB driver from Device Manager under modems.
- Disconnect the USB cable, wait at least 10 seconds, then reconnect.
- When prompted by the Hardware Wizard, select "No, not this time," then "Install the software automatically," and press "Continue Anyway."
- Finish the installation and check if the USB device appears in the setup software.
These steps help ensure proper hardware connection and correct software recognition of the MM300 device.
This answer is automatically generated