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S.ZCOM, SP.ZCOM
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8.1 Network refresh instructions
8.1.1 S.ZCOM, SP.ZCOM
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)
Function
(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.)
8.1.1 S.ZCOM, SP.ZCOM Refresh for th e design ated modu le
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
Un
Un
S.ZCOM
SP.ZCOM
S.ZCOM
SP.ZCOM
Refresh
processing
Execution of ZCOM
instruction
END
Refresh
processing
Refresh
processing
Refresh
processing
Refresh
processing
END
Execution of ZCOM
instruction
Execution of ZCOM
instruction
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