Personal Computer User Manual

Technical data of CPU 31x
7.7 CPU 317-2 PN/DP
CPU 31xC and CPU 31x, Technical data
7-36 Manual, Edition 08/2004, A5E00105475-05
Technical data
• Number of variables
– Of those as status variable
– Of those as control variable
30
Max. 30
Max. 14
Forcing
• Variables
Inputs/Outputs
• Number of variables
Max. 10
Block status Yes
Single step Yes
Breakpoints 2
Diagnostic buffer Yes
• Number of entries (not configurable)
Max. 100
Communication functions
Open IE communication via TCP/IP Yes (via integrated PROFINET interface and
loadable FBs, max. 8 connections)
PG/OP communication
Global data communication Yes
• Number of GD circuits
8
• Number of GD packets
– Sending stations
– Receiving stations
Max. 8
Max. 8
Max. 8
• Length of GD packets
– Consistent data
max. 22 bytes
22 bytes
S7 basic communication Yes
• User data per request
– Consistent data
max. 76 bytes
76 bytes
S7 communication Yes
• As server
Yes
• as client
Yes (via integrated PN interface and loadable
FBs, or even via CP and loadable FBs)
• User data per request
– Consistent data
See the STEP 7 Online Help,
Common
parameters of SFBs/FBs and SFC/FC of the S7
communication)
S5-compatible communication Yes (via CP and loadable FCs)
Number of connections 32
can be used for
• PG communication
– Reserved (default)
– Configurable
Max. 31
1
1 to 31
• OP communication
– Reserved (default)
– Configurable
Max. 31
1
1 to 31
• S7-based communication
– Reserved (default)
– Configurable
Max. 30
0
0 to 30