File Memory Instructions - Omron SYSMAC C2000H Operation Manual

File Memory Instructions

5-25

File Memory Instructions

214
AR 1815
AR 1814
No delay
AR 1813
*Negative
delay
AR 1812
Sampling
Trace memory
File memory instructions all involve the transfer of data to and from the File
Memory area and the PC memory areas.The File Memory area is contained
in a File Memory Unit. The instructions described in this section can thus only
be used if there is a File Memory Unit mounted.
File memory transfers are done in blocks of 128 words. File Memory Units
are available with a capacity of either 1000 or 2000 blocks. The blocks are
numbered from zero.
Exercise care when transferring a very large number of blocks or words since
this can greatly increase the overall cycle time.
The following flags are used by all of the File Memory instructions. Refer to
3-4-3 File Memory Flags and Control Bits for details.
AR 1900 Turned ON and OFF to reset AR 1903 through AR 1907.
AR 1901 Transfer in progress (ON)
AR 1902 Transfer direction (ON for transfer away from File Memory;
OFF for transfer to File memory)
AR 1903 to1906 Error flags
AR 20 Total number of transferred blocks (4-digit BCD)
AR 21 Remaining number of blocks to be transferred
(4-digit BCD)
Positive
delay
AR 1812 turns ON and the
trace is complete when
enough data to fill trace
memory has been sampled.
*Negative delays cannot be such that the
requested data was executed before the
sampling started.
Section 5-25
Sampling
Start tracing
Tracing Flag
Trace Completed Flag