Delta AH500 Programming Manual page 485

X0.0 is switched from OFF to ON, the instruction FROM is executed. The mode of the data
exchange through COM1 on AH50010SCM-5A stored in CR#7 is read into D100. Owing to the fact
that no error occurs, the code stored in D110 is 16#0000.
The use of the parameters:

The module is placed on the main rack. Therefore, the rack code stored in D40 is 16#0001.

The module is inserted in the first slot. Therefore, the slot code stored in D41 is 16#0000.

The mode of the data exchange through COM1 is stored in CR#7. Therefore, the control
register number stored in D42 is 16#0007.

Owing to the fact that the mode of the data exchange through COM1 occupies one register,
the value in D43 is 1.

The data which is read from CR#7 is stored in D100.
Additional remark:
1. If the values in m
1
executed, SM0 is ON, and the error code in SR0 is 16#2003.
2. If D ~D +n-1 exceed the device range, the instruction is not executed, SM0 is ON, and the
1 1
error code in SR0 is 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.
4. Due to the fact that the use of the instruction FROM decreases the execution efficiency of the
CPU module and that of the I/O module, users should use it less often.
5. The descriptions of the error codes:
Error code
16#2003
16#200B
16#1400
16#1401
16#1402
16#1407
and m exceed the range, the operation error occurs, the instruction is not
2
Description
Please refer to point 1 and point 2 in the
additional remark.
Please refer to point 3 in the additional
remark.
An error occurs when the data is accessed
through the auxiliary processor.
An error occurs when the data in the I/O
module is accessed.
The arrangement of the I/O modules is not
consistent with the module table.
A communication error occurs when the
data is accessed through the auxiliary
processor.
Ch a pt er 6 Ap p l i ed I ns t r uc t i ons
6-317