
OIT***-F113-B12-CB*
Communicating with the OIT system
19
9165
201
3-
06
29
The data telegram from OIT to PLC has a fixed size of 28 bytes and is divided into
the following 5 blocks:
Network configuration overview OIT
Network configuration overview PC
Block
Description
ID number
(2 bytes)
the ID number that is transmitted from the PLC is mirrored in this
block.
Control byte
STL
(1 byte)
The following control bits are transferred from the OIT system to
the PLC in the control byte STL:
■
0 = Request default state (OIT requests a reset from the PLC
(control bit 0 in byte n+4=initial state to OIT))
■
1 = Not assigned
■
2 = Read error
■
3 = Not assigned
■
4 = Waiting for data (read was successful, OIT system expects
feedback from PLC)
■
5 = Not assigned
■
6 = Only TNR (additional parity bit that transfers the value "0" or
"1")
■
7 = Not assigned
Control byte
STH
(1 byte)
The individual control bits that are transmitted from the PLC in the
control byte SAH are mirrored in the control byte STH.
Manual entry
ID/UID
(14 bytes)
Manually captured data is transmitted in this block during a failed
read.
ID: up to 6 bytes are available.
UID: up to 8 bytes are available.
If the data was not entered manually, a "-" is transmitted for every
byte.
read ID number
(6 bytes)
The ID number read by the OIT system is transmitted in this block.
If the data was entered manually, as in the case of an error, an "x"
is transmitted for every byte.
Fault
(4 bytes)
Fault messages see chapter 7.3
Designation
value
IP address OIT system
192.168.0.65
Port (communication TCP/IP standard)
10005 (alterable)
Port (communication as per RFC1006/IP
standard)
102 (fixed)
Port (OITControl)
10050 (alterable)
Port (web browser)
80 (fixed)
Port (TCP/IP, EasyMode)
10100 (fixed)
Port (Replay server)
2006 (alterable)
Designation
Value
IP address
192.168.0.x (x = any number except 65 and 0)
Subnet mask
255.255.255.0