STS DTM.OCS.S, Руководство по эксплуатации, Страница: 22 / 33

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N
Modbus standard commands
22
Doc-Nr. 10.00.0430
T
MIN
= -10°C, T
MAX
= 50°C
Address
Function
code
Start index Length crc
byte code:
F0 04 00 01 00 01 75 2B
format:
byte byte high byte low byte high byte low byte
CRC
low
CRC
high
transmit sequence
Example answer (in hex format) for a sensor with the address
240
10
(F0
16
).
Address
Function
code
ByteCount Temperature [points] crc
byte code:
F0 04 02 15 EF 8B F9
format:
byte byte byte high byte low byte CRC low CRC high
transmit sequence
Example conversion: C T
   
 

69 . 23 ) 10 (
10000
)) 10 ( 50 (
* 5615
6.3 Read pressure and temperature in one command
6.3.1 Command (Hex-Code, Function Code 4)
Example transmission code (in hex format) for a sensor with the
address 240
10
(F0
16
):
F0 04 00 00 00 02 64 EA
6.4 Read maximum pressure (Nominal pressure, P
MAX
)
6.4.1 Command (Hex-Code, Function Code 3)
Example transmission code (in hex format) for a sensor with the
address 240
10
(F0
16
):
F0 03 00 C8 00 02 50 D4
6.4.2 Interpretation start index 200+201: Nominal pressure
Data type: 32 Bit signed integer
PMax1, PMax2

Description: Nominal pressure