Toshiba S20LP instruction manual Transfer parameters a, Cmd

Models: S20LP

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6 F 3 B 0 3 5 6

(Note 1) ERF is the S0051 special relay. See the T-series Instruction Set for information on ERF usage.

(Note 2) For these instructions, instruction execution starts at the point the input changes state from off to on.

(Note 3) Since these instructions span multiple scans, applications must hold the input in the on state until the output goes to the on state.

(Note 4) After instruction execution terminates, it is possible to start execution again by applying a new input.

(4)Transfer parameters (A)

The data required for a request to the S20LP-station is set up in an area that starts in the register indicated by [A]. Then the application executes a SEND or RECV instruction. Here we present an overview of the structure of the transfer parameters.

A

A + 1

A + 2 A + 3

M

2oH

CMD

Parameters

Module designation

 

Command number:

Normally 0H; request to loopback 000FH

Parameters:

This data differs depending on the type of

 

the request to the S20LP-station.

Module designation:

Designates the S20LP module in the T2N/T3H.

2 (Module ID):

Must be set to 2 for an S20LP-station.

o(channel number):

The values 1 and 2 are allocated in order starting closest to

 

the T3H. T2N must be set to 1.

(station number):

This two-digit field set to another station number.

(Note 5) Do not modify the contents of the transfer parameters while an instruction execution is in progress.

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Page 49
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Toshiba S20LP instruction manual Transfer parameters a, Cmd