Instruction manual

4
1. Ethernet 4-19
Network Communications
ZM-71SE Setting (Macro)
This section explains the macro commands (SEND/EREAD/EWRITE) used for the
Ethernet. For more information on macro commands, refer to the ZM-71SE Instruction
Manual (Function).
Macro Command
[EREAD]
Words from the F1 memory in the ZM-300 series of the network table number specified
for F3 are read into the F0 memory. F2 designates the number of words to be read.
Usable Devices
EREAD: Read into memory
EREAD F0 = F1 C: F2 F3
Example: Macro command at the ZM-300 (A)
The macro command for ZM-300 (A) to read data from PLC (B) and transfer
it to PLC (A) is shown below.
[Contents] Two words starting from D100 in PLC (B) are read into D200 in
PLC (A).
Internal
Memory
PLC
Memory
Constant
Memory
Card
Indirect
Designation
Double
-word
IP Address
F0
F1
F2
F3
[Description] EREAD D200 = D100 C: 2 B
Top memory address
of the target
Top memory address
of the source
The number of words
to be transferred
Address of the source
(Network table number)
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run
ｓｔｏｐ
<PLC: A>
Ethernet
<V7: A>
<PLC: B>
<V7: B>
D200 - 201
D100 - 101
PROGRAMMER
FACTORY
ACE
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
EREAD
<ZM-300 (A)>
<PLC (A)>
<ZM-300 (B)>
<PLC (B)>