User's Guide

21
If UC100 fails to connect the Modbus data, it will send an error message.
5.3 Downlink Command
UC100 supports downlink commands to configure the device. The application port is 85 by
default.
Examples:
1. Reporting Interval
2. Reboot the device
-END-
DCBA
536876288
(0x20001500)
00 15 00 20
(ABCD)
Holding/Input Register (INT32
with upper 16 bits)
/
21 (0x15)
15 00 00 00
Holding/Input Register (INT32
with lower 16 bits)
/
32 (0x20)
20 00 00 00
ff 15 00
Channel
Type
Value
ff
15 (Poll Failed)
00 => Channel 1
Channel
Type
Description
ff
03(Set Reporting Interval)
2 Bytes, unit: s
10 (Reboot)
ff (Reserved)
ff 03 b0 04
Channel
Type
Value
ff
03 (Set Reporting Interval)
b0 04 => 04 b0 = 1200 s = 20 mins
ff 10 ff
Channel
Type
Reserved
ff
10 (Reboot)
ff