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CHAPTER 9 DEDICATED INSTRUCTIONS
9
9.12 J(P).ZNRD (Data Read from Programmable Controllers on Other Stations)
9.12 J(P).ZNRD (Data Read from Programmable Controllers
on Other Stations)
This instruction reads data from devices of a programmable controller on another station. (In units of words)
*1 T, C, D or W can be used.
(1) Setting data
*1 Local devices and file registers for each program cannot be used as devices in setting data.
*2 In addition to the setting data, the ZNRD instruction is executed using the following fixed values.
Channel used by own station: Channel 1
Arrival monitoring time (monitoring time until instruction completion): 10 seconds
Number of resends for arrival monitoring timeout: 5 times
Setting
data
Available devices
Internal device
(System, User)
File
register
R, ZR
Link direct
device J\
Intelligent
function
module device
U\G
Index
register Zn
Constant
Others
Bit Word Bit Word K, H $
n1 ——
(S1) —
*1
————
(D1) — — — —
n2 ——
(D2) ———
Setting data
*1*2
Description Data type
Jn Network No. of the target station (1 to 239)
Binary 16 bits
n1 Target station No. (1 to 64)
(S1) Target station's start device where data to be read are stored
Device name
(D1)
The own station's start device where readout data will be stored
(A contiguous area for the read data length is required.)
n2
Read data length
When the target station is QCPU/RCPU/LCPU/QnACPU/AnUCPU:
1 to 230 words
When the target station is other than
QCPU/RCPU/LCPU/QnACPU/AnUCPU: 1 to 32 words
Binary 16 bits
(D2)
The own station's device that is turned on for one scan upon completion of the
instruction
(D2)+1 also turns ON if the instruction execution has failed.
Bit
J.ZNRD
Jn (S1) (D1) n2 (D2)
JP.ZNRD
Jn (S1)
n1
n1 (D1) n2 (D2)
J.ZNRD
Start contact
[Instruction format][Execution condition][Instruction symbol]
JP.ZNRD
Start contact
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