665
S.ZCOM, SP.ZCOM
1
2
3
4
6
6
7
8
8.1
N
etwor
k refre
sh
instruction
s
8.1.1
S
.ZCOM, SP.ZC
OM
CHAPTER 8
INSTRUCTIONS FOR DATA LINK
8.1
Network refresh instructions
Remark
In this chapter, instruction names are abbreviated as follows if not specified particularly.
• S(P).ZCOM ZCOM
• S(P).RTWRITE
RTWRITE
• S(P).RTREAD RTREAD
Jn
: Network No. of host station (BIN 16 bits)
Un
: Head I/O number of host station network module (BIN 16 bits)
The ZCOM instruction is used to perform refresh at any timing during execution of a sequence program.
The targets of refresh performed by the ZCOM instruction are indicated below.
• Refresh of CC-Link IE Controller Network (when refresh parameters are set) (QCPU only)
• Refresh of CC-Link IE Field Network (when refresh parameters are set)
(Universal model QCPU whose serial number (first five digits) is "12012" or later and LCPU whose serial number (first five
digits) is "13012" or later only)
• Refresh of MELSECNET/H (when refresh parameters are set) (QCPU only)
• Auto refresh of CC-Link (when refresh device is set)
• Auto refresh of intelligent function module (when auto refresh is set)
F
unct
i
on
(1) When the ZCOM instruction is executed, the CPU module temporarily suspends processing of the sequence program
and conducts refresh processing of the network modules designated by Jn/Un. (For LCPU whose serial number (first five
digits) is "13011" or earlier, the designation by Jn cannot be made.)
S.ZCOM, SP.ZCOM
Refresh for the designated module
8.1.1
S.ZCOM, SP.ZCOM
Setting
Data
Internal Devices
R, ZR
J \
U \G
Zn
Constants
Other
Bit
Word
Bit
Word
––
––
Basic
Process
High
performance
Redundant Universal
LCPU
Command
Command
S
.
ZCOM
SP
.
ZCOM
Command
S
.
ZCOM
Command
SP
.
ZCOM
Jn
Jn
U
n
U
n
S.ZCOM
SP.ZCOM
S.ZCOM
SP.ZCOM
Refresh
process
i
ng
E
xecut
i
on
of
ZCOM
i
nstruct
i
on
EN
D
Refresh
process
i
ng
Refresh
process
i
ng
Refresh
process
i
ng
Refresh
process
i
ng
EN
D
E
xecut
i
on
of
ZCOM
i
nstruct
i
on
E
xecut
i
on
of
ZCOM
i
nstruct
i
on
0