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8
Modbus interface
8.1
Supported function codes
Function code
03 (03hex)
04 (04hex)
06 (06hex)
16 (10hex)
8.2
Modbus Termination
Jumper switch position
1
9
Gateway software update
To install the new software, follow these steps:
1. Press the push button for 5 seconds - this allows the SD card to be ejected.
2. Copy the update file to the SD card.
3. With the SD card reinstalled in the Gateway, the Gateway will reboot, and the new
software will automatically be installed - the .bin file will automatically be removed from the
SD card after a successful update.
Description
ON
Internal termination resistor is connected
OFF
Internal termination resistor is disconnected
Command text
Read holding registers
Read input registers
Write single register
Write multiple registers
NB. Power off before changing the jumper
switch position.
REV. 01 - OCTOBER 2020 - BLÜCHER
21
CONNECTED ROOF
®
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