Siemens SIMATIC S5 Manual page 165

S5-95U, SINEC L2
Invoking FB223 and FB224 with the RUP_SINGLE Service in the Receiving PLC
(holds data ready for fetching)
OB1 (Receiving PLC)
. .
. .
:JU FB 223
Name :SENDER
ANST : F 0.0
LSTA : FY 9
:
:JU FB 224
Name :EMPFANG
EMPF : F 0.1
:
:
:BE
Invoking FB223 with the SRD Service in the Sending PLC (to fetch the data)
OB1 (Sending PLC)
. .
. .
:JU FB 223
Name :SENDER
ANST : F 0.0
LSTA : FY 9
:
:
:BE
Storing Request and Confirmation at the Receiver Using the RUP_SINGLE Service
(holding data ready for fetching)
DB33
0: KH = 0000;
1: KY = 000,000;
2: KY = 006,000;
3: KY = 000,000;
4: KY = 000,000;
5: KH = 1111;
6: KH = 2222;
7: KH = 3333;
8: KH = 4444;
9: KH = 0000;
10: KY = 001,000;
11: KY = 006,000;
12: KY = 000,000;
13: KY = 000,255;
14: KH = 0000;
EWA 4NEB 812 6112-02
Data Transmission by Accessing Layer 2 Services
Send request and fetch confirmation ( section 8.4)
Send initiation bit for the RUP_SINGLE service
Flag byte contains the link_status of the confirmation
Fetch INDICATION of the SRD service
Enable receive
Send request and fetch confirmation ( section 8.4)
Send initiation bit for the SRD service
Flag byte contains the link_status of the confirmation
****Request frame, RUP_SINGLE service****
com_class / user_id
service_code / irrelevant
service_class / irrelevant
irrelevant / rem_add_segm
Data bytes 1 and 2
Data bytes 3 and 4
Data bytes 5 and 6
Data bytes 7 and 8
***Confirmation frame, RUP_SINGLE service***
com_class / user_id
service_code / link_status
service_class / irrelevant
irrelevant / rem_add_segm
Explanation
Explanation
Explanation
8-25