Instructions
Intesis
TM
 INMBSDAI001R000 
 User’s Manual r3.8 EN 
© HMS Industrial Networks S.L.U. - All rights reserved 
This information is subject to change without notice 
 URL   https://www.intesis.com 
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4.4  Implemented Functions 
INMBSDAI001R000 implements the following standard Modbus functions: 
▪  3: Read Holding Registers 
▪  4: Read Input Registers 
▪  6: Write Single Register 
▪  16: Write Multiple Registers (Despite this function is allowed, the interface does not allow 
to write operations on more than 1 register with the same request, this means that length 
field should be always be 1 when this function is being used in case of writing) 
4.5  Device LED indicator 
The device includes two LED indicators to show all the possible operational states. In the following 
table there are written the indicators which can be performed and their meaning. 
L1 (green LED) 
Device status 
LED indication 
ON / OFF Period 
Description 
During not normal 
operation 
LED blinking 
500ms ON / 500ms OFF 
Communication error 
During normal 
operation 
LED flashing 
100ms ON / 1900ms OFF 
Normal operation (configured and 
working properly) 
L2 (red LED) 
Device status 
LED indication 
ON / OFF Period 
Description 
During not normal 
operation 
LED Pulse 
 3sec ON / --- OFF 
Under voltage 
L1 (green LED) & L2 (red LED) 
Device status 
LED indication 
ON / OFF Period 
Description 
During normal 
operation 
LED Pulse 
 5sec ON / --- OFF 
Device Start-up 
During not normal 
operation 
LED alternatively 
blinking 
500ms ON / 500ms OFF 
Flash checksum not OK 










