Technical data

Table Of Contents
List of SFCs, and SFBs
System Software for S7-300/400 System and Standard Functions - Volume 2/2
35-8
A5E00739858-01
No. Short Name Function
SFB 61 RECV_PTP
2)
Receiving Data (ASCII, 3964(R))
SFB 62 RES_RECV
2)
Deleting the Receive Buffer (ASCII, 3964(R))
SFB 63 SEND_RK
2)
Sending Data (RK 512)
SFB 64 FETCH_RK
2)
Fetching Data (RK 512)
SFB 65 SERVE_RK
2)
Receiving and Providing Data (RK 512)
SFB 75 SALRM Send interrupt to DP master
SFB 81 RD_DPAR Read Predefined Parameter
* SFB 29 "HS_COUNT" and SFB 30 "FREQ_MES" only exist on the CPU 312
IFM and CPU 314 IFM. SFBs 38 "HSC_A_B" and 39 "POS" only exist on the
CPU 314 IFM. For a detailed description, refer to /73/.
1) SFBs 41 "CONT_C," 42 "CONT_S" and 43 "PULSEGEN" only exist on the
CPU 314 IFM.
2) SFBs 44 to 49 and 60 to 65 only exist on the S7-300C CPUs.