Rockwell Automation 1757-SWKIT4000 ProcessLogix R400.0 Installation and Upgrade Guide - Manual (Page 274)

Publication 1757-IN040B-EN-P - March 2002
11-22 Performance and Capacity Specifications
•
The maximum number of SST-PFBCLX modules that can be
supported by a C200 controller is 10. The modules may be
distributed in one or more downlink CNI’s. (TBD)
•
Multi-master configurations are supported. (TBD)
•
Regarding the existing limits of 64 IOM connections per CPM
and 24 IOM’s per downlink CNI:
– The PBIM block is counted as 2 IOM’s
– The various PROFIBUS device/module blocks that are
associated with a given PBIM are not counted in these limits.
(Only the associated PBIM is counted.)
•
The I/O publication/communication rate between the PBIM and
the C200 is configurable as a property of the PBIM block and
can vary between 12.5 and 50 msec.
•
All PROFIBUS DP baud rates are supported, up to 12 M.
Table 11.O Profibus Capacity/Topology Specifications
PFB Module and PROFIBUS Block Specifications
Note: The PROFIBUS interface module hardware component is the SST-PFBCLX, and is referred to herein
as the PFB Module. This device acts as the “master” on the PROFIBUS-DP network. Each PFB module is
represented as a block in the CEE, which is referred to as the PROFIBUS Interface Module Block (PBIM).
PROFIBUS Communication Profiles Supported DP (only)
PROFIBUS Baud Rates Supported 12 MBps, 6 MBps, 3 MBps, 1.5 MBps, 500 KBps,
187.5 KBps, 93.75 KBps, 19.2 KBps, 9.6 KBps,
Support for Multi-Master Configurations Yes
Support for PROFIBUS Slave Diagnostics No
Valid PROFIBUS Station address range 0 - 125
Maximum number of modules per PBIM block
(identified by a unique station/module number
combination) 100
Maximum Input Data Size per PFB Module
(all slave stations) 496 bytes
(valid range = 4-499)
Maximum Output Data Size per PFB Module
(all slave stations) 492 bytes
(valid range = 4-495)