Data Transmission by Accessing Layer 2 Services S5-95U, SINEC L2
Invoking FB223 for SRD
OB1 (Sending PLC) Explanation
. .
. .
:JU FB 223
Send request and fetch confirmation ( section 8.4)
Name :SENDER
ANST : F 0.0
Send initiation bit for the SRD service
LSTA : FY 9 Flag byte contains the link_status of the confirmation
:
:
:BE
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Invoking FB223 and FB224 for the RUP_SINGLE and/or RUP_MULTIPLE Service in the
Receiving PLC (to hold data ready for fetching)
OB1 (Receiving PLC) Explanation
. .
. .
:JU FB 223
Send request and fetch confirmation ( section 8.4)
Name :SENDER
ANST : F 0.0
Send initiation bit for the RUP_SINGLE and/or
RUP_MULTIPLE service
LSTA : FY 9 Flag byte contains the link_status of the confirmation
:
:JU FB 224
Fetch INDICATION of the SRD service
Name :EMPFANG
EMPF : F 0.1
Enable receive
:
:BE
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8-32
EWA 4NEB 812 6112-02
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