29
The response contains data read from the specified registers. The register data in the response
message are packed as two bytes per register. For each register, the first byte contains the
most significant byte and the second contains the least significant byte. An example of the
response to the query:
Byte no.
Field name
Example (hex)
1
Slave Address
11
2
Function Code
03
3
Number of Data Bytes
06
4
Contents of register 30h – MSB 00
5
Contents of register 30h – LSB
01
6
Contents of register 31h – MSB C8
7
Contents of register 31h – LSB
00
8
Contents of register 32h – MSB F3
9
Contents of register 32h – LSB
15
10
CRC (Lo)
xx
11
CRC (Hi)
xx
4.5.2 Force single coil (05h)
Forces a single coil to either ON or OFF state. Forcing the particular coil ON initiates assigned
function as described in paragraph 4.4. When broadcast, the function is performed in all
attached slaves.
The query specifies the coil address (function). The requested ON / OFF state is specified by a
constant in the query data field. A value FF00h requests to perform function. A value 0000h
means no action. Here is an example of the request to initiate the Write EEPROM function
(coil no. 0002) for the transducer with slave address 11h:
Byte no.
Field name
Example (hex)
1
Slave address
11
2
Function code
05
3
Coil address (Hi)
00
4
Coil address (Lo)
01
5
Force data (Hi)
FF
6
Force data (Lo)
00
7
CRC (Lo)
xx
8
CRC (Hi)
xx
Summary of Contents for EDT 101
Page 1: ...1 Temperature transducer EDT 101 User manual Rev 6 December 2019...
Page 35: ...35...
Page 40: ...H101AN_201912_EDT101...
