GW-7838-M (Modbus TCP Server to M-Bus Master Gateway) User Manual
Version 1.01
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1.2 Specification
Module
GW-7838-M
M-Bus Interface
Channel
1
Baud Rate (bps)
300 bps ~ 2400 bps
Data bit
5, 6, 7, 8
Stop bit
1, 2
Parity
None, Even, Odd, Space, Mark
Isolation
3750 Vrms for photo-couple
ESD Protection
Contact ±4 kv class B
Current Protection
short-circuit protection
UART Interface
Channel
1 RS-232
Baud Rate (bps)
300 bps ~ 115200 bps
ESD Protection
Contact ±4 kv class B
Ethernet Interface
Channel
1
Protocol
Modbus TCP
Power
Power Supply
Unreg10 ~ +30 V
DC
Protection
Power reverse polarity protection, Over-voltage brown-out protection
Power Consumption
1.8 W @ 24 VDC (with 1 slave device)
11.8 W @ 24 VDC (with 100 slave devices)
Mechanical
Installation
DIN-Rail
Dimension (W x L x H)
72mm x 122mm x 33mm
Environment
Operating Temperature
-25 to +60°C
Storage Temperature
-40 to +80°C
Relative Humidity
10 to 90% RH, Non-condensing
