Chapter 6 FBD Block Diagram Programming 142
IO Link function block
Up to 8 additional SG2 units can be configured as independent Slave nodes, each running their own logic program and
their I/O linked to one Master smart relay. The Master smart relay’s ID must be 00, and Slave nodes’ ID should
start with 01 and be continuous. If nodes’ ID isn’t continuous, the Master won’t communication with those
nodes which are behind the first broken. For example, the nodes’ ID is 01, 02, 04 and 05. The Master thinks
there are only two Slave nodes whose ID is 01 and 02, and communication with them.
Each controller can use 8 IO Link (L01~L08). Only one IO Link instruction can work at Mode 1(send mode),
and the other IO Link instructions must be Mode 2 (receive mode).
The Mode 1: Send memory range is determined by the Controller ID. The adjacent table show the memory range of
Wxx locations associated with each controller ID.
The Mode 2: read the selected Wxx status and write to the selected coil. If the select coil type is input coil I or X, coil
status can’t be changed by Wxx status.
FBD output coil display
M01: enable input coil
Press “OK” button into
function display
Press “SEL” , “↑ ↓” and “OK”
to modify mode, coil number,
coil type and W address
Display Description Type of points Range
L01: I/O link output terminal (L01~L08) Inputs I01~I0C/i01~i0C
M01: Enable Input (I01~ B260) Outputs Q01~Q08/q01~q08
Mode: Setting mode(1,2) 1:sending; 2:receiving Auxiliary coil M01~M3F/m01~m3F
Num: Number of send/receive points (1~8) Auxiliary coil N01~N3F/n01~n3F
I03…I07: Type of send/receive points Expansion inputs X01~X0C/x01~x0C
W09…W13: Send/Receive W Table list location Expansion outputs Y01~Y0C/y01~y0C
ID Memory list
location
0 W01~W08
1 W09~W16
2 W17~W24
3 W25~W32
4 W33~W40
5 W41~W48
6 W49~W56
7 W57~W64
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