Pilz PNOZ m B0 - Manual (Page 48)

Modbus/TCP
Operating Manual PNOZmulti 2 Communication Interfaces
1002971­EN­02 48
6.4.2 Function codes
The following function codes (FC) are available for communication with the PNOZmulti 2
via Modbus/TCP:
Function code Function
FC 01 Read Coils The connection Client reads bit data
from the connection Server,
data length ≥ 1 Bit, content: Input/output
data
(data received from 0x)
FC 02 Read Discrete Input The connection Client reads bit data
from the connection Server,
data length ≥ 1 Bit, content: Input/output
data
(data received from 1x)
FC 03 Read Holding Register The connection Client reads word data
from the connection Server,
data length ≥ 1 Word, content: Dia­
gnostic word
(data received from 4x)
FC 04 Read Input Register The connection Client reads word data
from the connection Server,
data length ≥ 1 Word, content: Dia­
gnostic word
(data received from 3x)
FC 05 Write Single Coil The connection Client writes to one bit
datum in the connection Server,
data length = 1 Bit, content: Input data
(send data to 0x)
FC 06 Write Single Register The connection Client writes to one
word datum in the connection Server,
data length = 1 Word, content: Input
data
(send data to 4x)
FC 15 Write Multiple Coils The connection Client writes to multiple
bit data in the connection Server,
data length ≥ 1 Bit, content: Input data
(send data to 0x)
FC 16 Write Multiple Registers The connection Client writes to multiple
word data in the connection Server,
data length ≥ 1 Word, content: Input
data
(send data to 4x)
FC 23 Read/Write Multiple Re­
gisters The connection Client reads and writes
multiple word data within a telegram
(receive data from 3x and send data to
4x)