Technical data of CPU 31x
7.8 CPU 319-3 PN/DP
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
7-45
Technical data
• Number of GD packets, sender, Max.
8
• Number of GD packets, receiver, Max.
8
• Size of GD packets, Max.
22 bytes
• Size of GD packets, consistent, Max.
22 bytes
S7 basic communication
• supported
Yes
• User data per job, Max.
76 bytes
• User data per job, consistent, Max.
64 bytes (for X_SEND or X_RCV), 64 bytes (for
X_PUT or X_GET as the server)
S7 communication
• supported
Yes
• As server
Yes
• As client
Yes (via integrated PN interface and loadable
FBs, or even via CP and loadable FBs)
• User data per job
– Consistent data
Refer to Step 7 Online Help,
Parameters of
SFBs/FBs and SFC/FC of the S7 communication)
S5compatible communication
• supported
Yes (via CP and loadable FCs)
Number of connections
• Total
32
usable for PG communication 31
• PG communication, reserved
1
• PG communication, configurable, Max.
31
usable for OP communication 31
• OP communication, reserved
1
• OP communication, configurable, Max.
31
usable for S7 basic communication 30
• S7 basic communication, reserved
0
• S7 basic communication, configurable, Max.
30
PROFINET CBA
Reference setting for the CPU communication
load
20%
Number of remote interconnecting partners 32
Number of master/slave functions 50
Total of all master/slave connections 3000
Data length of all incoming master/slave
connections, Max.
24000 bytes
Data length of all outgoing master/slave
connections, Max.
24000 bytes
Number of device-internal and PROFIBUS
interconnections
1000
Data length of the device-internal and PROFIBUS
interconnections, Max.
8000 bytes
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