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6 DEDICATED INSTRUCTIONS
Control data
Device
Item
(S1) + 0
Abnormal complete type
(S1) + 1
Completion status
(S1) + 2
Channel used by the local station
(S1) + 3
Target station's CPU type (
(S1) + 4
Target station network No.
6 - 13
POINT
(1) The READ instruction can be executed only when the target station is the
Q/QnACPU.
(The READ instruction cannot be executed for an ACPU connected to the
MELSECNET/10 or Ethernet network systems.)
Thus, the target station numbers should be limited to Q/QnACPU station
numbers.
(2) When reading data from the other station CPU module device with the READ
instruction, specify the device within the range applicable to the host station
CPU module.
(Head device number to be read in other station CPU module (S2)) + (number
of read points -1)
: Last device number in host station CPU module having the same device
name as (S2).
REMARK
1)
1: At completion of the execution of an instruction, the completion status ((S1) +
1) and the clock data ((S1) + 11 to (S1) + 17) at error occurrence are stored
in the control data.
2) The number of steps for the READ instruction is 9.
b15
1) Abnormal complete type (bit 7)
Set whether or not the clock data setting is required at abnormal
completion.
0: Clock data setting is not required
..... Clock data is not stored in (S1) + 11 to (S1) + 17 when
errors occur.
1: Clock data setting is required
..... Clock data is stored in (S1) + 11 to (S1) + 17 when
errors occur.
Store the status at completion of an instruction.
0: Normal
Other than 0: Abnormal (error code) (
Designate the channel used by the local station.
1 to 8 (Channel)
Specify the CPU type on the target station.
Setting value
Single CPU or CPU in the system directly connected to
0000
H
the local station (Same as "03FF
03D0
Control system CPU (
H
3
)
03D1
Standby system CPU (
H
03D2
System A CPU
H
03D3
System B CPU
H
Single CPU or CPU in the system directly connected to
03FF
H
the local station
Designate the network No. of the target station.
1 to 239: Network No.
254: When 254 is designated in Jn (The network designated by the valid
module during other station access)
< (last device number of host station CPU module
Set data
to
b7
to
0
1)
0
2
)
Description
")
H
5
)
5
)
MELSEC-Q
Setting range Set by (
b0
1
0001
H
0081
H
—
1 to 8
0000
H
03D0
to
H
03D3
H
03FF
H
1 to 239, 254
(Continued to the next page)
6 - 13
)
1
)
User
System
User
User
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