Atlas Copco PowerMACS 4000, User Manual

Page: 482 / 668

Peripheral Devices
482 9836 3521 01
A summary of the features offered by the different fieldbus modules are presented in the table below. All
numbers are in bytes.
The maximum available size of the IN and OUT areas varies with the type of fieldbus as listed in the
comparison table below, all numbers are in bytes:
Item
Devi
c
eNet
P
ro
fibu
s D
P
-V1
E
th
er
N
et/IP
Mod
b
u
s/TCP
P
ro
fiNe
t IO
Max. Cyclic Data (Read + Write) 512 152(400)
a
504 512
c
512
d
Min. Cyclic Data (Read + Write) 0 1 0 0 0
Max. Write Cyclic Data 256 152(244)
a
256 256
c
256
d
Min. Write Cyclic Data 0 0 0 0 0
Max. Read Cyclic Data 256 152(244)
a
256 256
c
256
d
Min. Read Cyclic Data 0 0 0 0 0
Max. Acyclic Data (Read + Write) 7680 8192
b
8192 8192 8192
Min. Acyclic Data (Read + Write) 0 0 0 0 0
Max. Write Acyclic Data 7680 8192
b
8192 8192 8192
Min. Write Acyclic Data 0 0 0 0 0
Max. Read Acyclic Data 7680 8192
b
8192 8192 8192
Min. Read Acyclic Data 0 0 0 0 0
a.
The numbers in parenthesis are valid if the checkbox “Extended Mode” is checked.
b. Only available for DP-V1 protocol.
c. This has to be a multiple of 2 bytes.
d. This has to be a multiple of 8 bytes.