Delta AS Series Programming Manual page 708

Explanation
1.
This instruction reads data from the control register in an extension module. All registers are listed and detailed in
the AS Series Module Manual.
2.
The value in m must be between 0–16. Zero represents the CPU module, and 1–16 represent the extension
1
modules.
3.
The operand m represents the number of the right-side extension modules that are connected to the CPU module
2
or to the remote modules. The first device is number 1, the second device is number 2 and so on. Any types of
connected modules are counted and up to 32 devices can be connected.
4.
The operand m specifies the control register number.
3
5.
The FROM instruction sets D
Additional remarks below for more information about the error codes. When the instruction is not executed, D
does not contain an error code.
6.
The operand n must be between 1–8.
7.
Only the 32-bit instructions can use the 32-bit counter, but not the device E.
Example
When X0.0 is switched from OFF to ON, the instruction reads the data stored in CR#2 from the right side of the first
module and stores the data in D100. If no error occurs, the code in D110 is 16#0000.
Additional remarks
1. If the values in m and m
1
ON, and the error code in SR0 is 16#2003.
2. If D to D +n-1 exceed the device range, the instruction is not executed, SM0 is ON, and the error code in SR0 is
1 1
16#2003.
3. If the value in n exceeds the range, the operation error occurs, the instruction is not executed, SM0 is ON, and the
error code in SR0 is 16#200B.
to 0. When an error occurs, the instruction does not set D
2
exceed their range, an operation error occurs, the instruction is not executed, SM0 is
2
Cha p ter 6 App l ied Ins truc tio ns
to 0. Refer to the
2
2
6_
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