FLEX I/O Adapters
• Supports Modbus Slave and PROFIBUS DP connectivity
• Add FLEX I/O into applications where other manufacturer
networks are already in use
• Concentrate data from up to eight FLEX modules to a single
node
Example Application: User requires communication interface for
analog and discrete I/O directly to a non-Rockwell Automation host.
Solution: 3170-MBS for Modbus
3170-PDP for PROFIBUS DP
Drives/SCANport Adapters
• Simple to use, requiring only the setting of
several dip-switch options
• Read/Write access to the entire parameter
table in a SCANport device
• High-speed access to the operating status and
control parameters
Example Application: User requires connectivity from
Allen-Bradley’s SCANport-compatible products, i.e.
PowerFlex, A-B Variable Speed Drives (1305 Micro, 1336
Plus, Vector, Force, etc.), the SMC Dialogue Plus, and the
SMP3 to alternate networks.
Solution: 1550-MBS for Modbus
1560-MBP for Modbus Plus
1560-PDP for PROFIBUS DP
1550-N2 for Johnson Control Metasys
Soft Control
DCS System
Siemens Processor
3170 FLEX
Adapter
Allen-Bradley
1336 Force and
vector drives
Allen-Bradley
1305 Micro
Allen-Bradley
1336 Plus
SCANport™
Adapter
SCANport
Adapter
SCANport
Adapter
Modbus
Modbus Plus
PROFIBUS
Johnson Metasys
Controls
1336
1336
8
Just Can’t Work Without It!
There are a total of 8 Atlas Copco
compressors in the Shanghai plant. Six of
these compressors are the ZH model, which
is a centrifugal type, having an Allen-Bradley
SLC™ 5/03 embedded in their control
systems. The impeller design of the ZH model
is state-of-the-art, with capacities starting at
3,000 cfm, in both single and multi-stage,
these compressors can provide discharge
pressures ranging from 25 to 400 psig.
The remaining two compressors are the
Z-pack models, equipped with built-in
Modbus communications. This created a
problem in networking the compressors
together, since the Allen-Bradley SLCs are not
Modbus compatible. The System Integrator,
Shanghai Yuandong Science & Technology,
contacted Rockwell Automation Shanghai and
ProSoft Technology®.
Shanghai Yuandong installed ProSoft’s 3150
Modbus interface module into the SLCs
onboard the Atlas Copco compressors, which
then allowed all of the compressors to link to
the HMI Host Station via the DH-485 network.
“By using ProSoft Technology’s 3150-MCM
module, we were able to directly connect
Allen-Bradley’s SLC with Atlas Copco’s
compressors using the Modbus protocol,”
said Chen Zong Liang, General Manager of
Shanghai Yuandong. “With central control,
it was possible to stagger the actions (start,
load, unload or stop) of every compressor
according to the charge situation.”
“Not only did this help increase production,”
said Lenus Hong, Regional Manager for
ProSoft Technology, “It created a cost savings
in terms of electricity and maintenance costs.
All of this translates into higher prots.”
When asked how the ProSoft Technology
module improved the plant processes,
i.e. functionality, speed, convenience, or
nancial benets, Liang simply replied, “It
just can’t work without it!”
Application Story
Adapters
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