Flintec DAD 141.1 - Manual (Page 30)

DAD 141.1 Technical Manual, Rev. 2.2 - February 2014 Page 30 of 54
10. Commands Description
For better clarity, all commands are divided into groups as described on the following pages. Each command
has to be completed with a CR (Enter), which is shown in the following tables as “ “.
For each command, the Modbus Index is displayed in brakets [
Index 0xNNNN ] and explained in the separate
manual ‘Modbus Communication’. If case of no index mentioned, the command is not available for
Modbus RTU or TCP.
10.1. System Diagnosis Commands
– ID, IH, IV, IS, SR, RS
Use these commands you get the DAD 141.1 type, firmware version or device status. These commands are
sent without parameters.
10.1.1. ID Get Device Identity [ Index 0x202C ]
Master (PC / SPS) sends Slave (DAD 141.1) responds
ID D:1410
The response to this request gives the actual identity of the active device. This is particularly useful when trying
to identify different device types on a bus.
10.1.2. IH Get Hardware Version
Master (PC / SPS) sends Slave (DAD 141.1) responds
IH H:14100101 FFFFFFFFFFFFFF…
10.1.3. IV Get Firmware Version [ Index 0x202E ]
Master (PC / SPS) sends Slave (DAD 141.1) responds
IV V:0104
The response to this request gives the firmware version of the active device.
10.1.4. IS Get Device Status [ Index 0x2030 ]
Master (PC / SPS) sends Slave (DAD 141.1) responds
IS S:067000 (example)
The response to this request comprises of two 3-digit decimal values (001 and 000), which can be decoded
according to the table below:
Leftmost 3-digit value Rightmost 3-digit value
1 Signal stable (no motion) 1 (not used)
2 Zeroing action performed 2 (not used)
3 Tare active 3 (not used)
4 (not used) 4 (not used)
8 (not used) 8 (not used)
16 (not used) 16 (not used)
32 (Setpoint-) output 0 active 32 (not used)
64 (Setpoint-) output 1 active 64 (not used)
128 (Setpoint-) output 2 active 128 (not used)
The example decodes the result S: 067000 (binary 01000011) as follows:

Signal stable (no motion) [2
0
= 1, LSB]

Zeroing action performed [2
1
= 2]

Tare not active [= 0]

Output 0 active [ = 0]

Output 1 active [2
7
= 64]

Output 2 not active [= 0]
Note: The bits that are not used are set to zero.