Technical data

Table Of Contents
Contents
System Software for S7-300/400 System and Standard Functions - Volume 2/2
iv
A5E00739858-01
22.7
Aborting an Existing Connection to a Communication Partner outside
the Local S7 Station with SFC 69 "X_ABORT" .............................................. 22-3
22.8
Reading Data from a Communication Partner within the Local S7 Station
with SFC 72 "I_GET" ...................................................................................... 22-3
22.9
Writing Data to a Communication Partner within the Local S7 Station
with SFC 73 "I_PUT" ...................................................................................... 22-3
22.10
Aborting an Existing Connection to a Communication Partner
within the Local S7 Station with SFC 74 "I_ABORT" ..................................... 22-3
23
Open Communication via Industrial Ethernet 23-3
23.1
Overview......................................................................................................... 23-3
23.2
Function of FBs for Open Communication via Industrial Ethernet ................. 23-3
23.3
Assigning Parameters for Communications Connections
with TCP native and ISO on TCP................................................................... 23-3
23.4
Assigning Parameters for the Local Communications Access Point
with UDP......................................................................................................... 23-3
23.5
Structure of the Address Information for the Remote Partner with UDP........ 23-3
23.6
Examples of Parameters for Communications Connections.......................... 23-3
23.7
Establishing a Connection with FB 65 "TCON" .............................................. 23-3
23.8
Terminating a Connection with FB 66 "TDISCON" ........................................ 23-3
23.9
Sending Data via TCP native and ISO on TCP with FB 63 "TSEND"............ 23-3
23.10
Receiving Data via TCP native and ISO on TCP with FB 64 "TRCV"............ 23-3
23.11
Sending Data via UDP with FB 67 "TUSEND" ............................................... 23-3
23.12
Receiving Data via UDP with FB 68 "TURCV"............................................... 23-3
24
Generating Block-Related Messages 24-3
24.1
Introduction to Generating Block-Related Messages with SFBs.................... 24-3
24.2
Generating Block-Related Messages without Acknowledgment
with SFB 36 "NOTIFY".................................................................................... 24-3
24.3
Generating Block Related Messages without Acknowledgement Display
with SFB 31 "NOTIFY_8P" ............................................................................. 24-3
24.4
Generating Block-Related Messages with Acknowledgment
with SFB 33 "ALARM" .................................................................................... 24-3
24.5
Generating Block-Related Messages with Associated Values
for Eight Signals with SFB 35 "ALARM_8P"................................................... 24-3
24.6
Generating Block-Related Messages without Associated Values
for Eight Signals with SFB 34 "ALARM_8"..................................................... 24-3
24.7
Sending Archive Data with SFB 37 "AR_SEND"............................................ 24-3
24.8
Disabling Block-Related, Symbol-Related and Group Status Messages
with SFC 10 "DIS_MSG" ................................................................................ 24-3
24.9
Enabling Block-Related, Symbol-Related, and Group Status Messages
with SFC 9 "EN_MSG" ................................................................................... 24-3
24.10
Startup Behavior of the SFBs for Generating Block-Related Messages........ 24-3
24.11
How the SFBs for Generating Block-Related Messages React
to Problems..................................................................................................... 24-3
24.12
Introduction to Generating Block-Related Messages with SFCs ................... 24-3
24.13
Generating Acknowledgeable Block-Related Messages with SFC 17
"ALARM_SQ" and Permanently Acknowledged Block-Related Messages
with SFC 18 "ALARM_S"................................................................................ 24-3
24.14
Querying the Acknowledgment Status of the Last ALARM_SQ/ALARM_DQ
Entering Event Message with SFC 19 "ALARM_SC"..................................... 24-3
24.15
Generating Acknowledgeable and Permanently Acknowledged Block Related
Messages with SFCs 107 "ALARM_DQ" and 108 "ALARM_D"..................... 24-3
24.16
Reading Dynamic System Resources with SFC 105 "READ_SI" .................. 24-3
24.17
Reading Dynamic System Resources with SFC 106 "DEL_SI" ..................... 24-3