sylvac PLC Mode D'emploi page 61

Function code
08 17
08 18
08 20
11
15
16
17
With
aaaa
bb
ff
ll
llll
R/S
Description
Reads Slave busy counter
Reads bus overrun counter
Clears overrun counter
Reads event counter
Write n bits
Write n registers
Reads module identification
Address
Number of bytes
Fast byte
Bytes list
Registers list
Run/Stop byte (0xff = Run,
0x00 = Stop))
PDU request format
0x08 0x11 0x0000
0x08 0x12 0x0000
0x08 0x14 0x0000
0x0B
0x0F aaaa nnnn bb ll
0x10 aaaa nnnn bb llll
0x11
nn
nnnn
yy00
vvvv
ID[]
PDU answer format
0x08 0x11 nnnn
0x08 0x12 nnnn
0x08 0x14 0x0000
0x0B nnnn
0x0F aaaa nnnn
0x10 aaaa nnnn
0x11 nn ID[] R/S
Quantity of data (1 byte)
Quantity of data (2 bytes)
Bit state
Word value
Identification : PM289.950#
followed by the slave number
(1 byte binary)