FEC HFC3000 - Page 178

Chapter 9 External Interface
PAGE 9-18
◆Enabling the CC-Link connection to the PLC
In addition, it is necessary for even the PLC side to implement a handshake about the system area. In a ladder
program, explain a method of the setting about three stations 8 times.
When 632 (278h) bit eyes (Initial Data Processing Request) of the system area (X domain) are turned on as a
program of the PLC in the case of three stations 8 times setting, set it so that 632 (278h) bit eyes (Initial Data
Processing Complete) of the system area (Y domain) become ON. Actually, appoint (100h +278h) like the
chart below as X domain and Y domain for 378h because allocate it as a domain of X and Y from 100h.
● Location of Handshaking Bits According to Size Configuration
Cyclic Cycles
Setting
1 Occupied Station
2 Occupied Station
3 Occupied Station
4 Occupied Station
1
24th bits / 18h
56th bits / 38h
88th bits / 58h
120th bits / 78h
2
24th bits / 18h
88th bits / 58h
152th bits / 98h
216th bits / D8h
4
56th bits / 38h
184th bits / B8h
312th bits / 138h
440th bits / 1B8h
8
120th bits / 78h
376th bits / 178h
632th bits / 278h
888th bits / 378h
(Location of “Initial Data Processing Request” and “Initial Data Processing Complete” Bits)
“h” = hexadecimal
Y378
X area
Y area
X378