● Depending on the communication format of an external device, if a header and a terminator
are contained, they are stored in the operation memory as part of receive data. When
necessary, insert a program to extract data content.
● In the case of a direct address and an index modification address, specify the same device
for D1 and D2. At the same time, specify the addresses so that D1 is less than D2.
● As the communication cassette (Ethernet type) has an Ethernet-serial conversion function, the
internal interface operates with similar programs as the case of SCU. The setting method and
programming method are different from those for the CPU with built-in ET-LAN. Refer to the
section describing the case of SCU.
■
Flag operations
Name Description
SR7
SR8
(ER)
To be set in the case of out-of-range in indirect access (index modification).
To be set when the destination range is outside the accessible range.
An SCU or ET-LAN unit does not exist in the slot specified by UNITSEL.
The communication mode of the communication port specified with UNITSEL is not
"General-purpose communication".
The COM port specified by UNITSEL does not exist.
Connection specified by UNITSEL is in a "reception done OFF" status, but not in a
"connected" status.
Data device specified by [D1] and/or [D2] exceeds the area.
The specified [D1] is greater than or equal to [D2].
The devices specified for [D1] and [D2] differ.
15.3 GPRECV (General-Purpose Communication Receive Instruction)
15-20 WUME-FP7CPUPGR-12
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