Specifications

33
SLC 500 Programmable Controllers and I/O Modules
Communication
Choices
Rockwell Automation offers many
control and communication media
products that help you integrate plant
operations. These products, combined
with other vendors’ products, provide
plant-wide solutions that meet your
control system and business needs.
There are three main levels of network:
The Information Level — allows
various IS, MES and Data Archiving
systems access to plant floor data for
financial, quality, manufacturing, and
development purposes.
The Control Level — provides
deterministic, repeatable performance
for I/O, programming and peer-to-peer
communications, while spanning the
entire manufacturing process from raw
materials to finished product.
The Device Level — allows users to
reduce hard wiring, save installation
time and costs, and gain valuable
diagnostics from the various sensors,
actuators, and other devices
connecting to the control system.
Choosing your Network
The SLC 500 provides a connection to all three levels of network, choose the
network(s) that best meet your needs:
If your application requires: Use this network Type:
• High-speed data transfer between information systems and/or a large quantity of controllers Ethernet network Information
• Internet/Intranet connection Network
• Program maintenance
• High-speed transfer of time-critical data between controllers and I/O devices ControlNet Control and
• Deterministic and repeatable data delivery Information
• Program maintenance network
• Media redundancy or intrinsic safety options
• Connections of low-level devices directly to plant floor controllers, without the need DeviceNet network Device network
to interface them through I/O modules
• More diagnostics for improved data collection and fault detection
• Less wiring and reduced start up time than traditional, hard wired systems
• Plant-wide and cell-level data sharing with program maintenance Data Highway Plus Information
(DH+) and DH-485 network
• Connections between controllers and I/O adapters Universal Remote I/O Control network
• Distributed controllers so that each has its own I/O and communicates
with a supervisory controller
• Modems Serial network Serial network
• Messages that send and receive ASCII characters to or from devices such as
ASCII terminals, bar code readers, message displays, weigh scales, or printers
• Supervisory control and data acquisition
THIS SIDE UP
ALLEN-BRADLEY1784-PCCCOMMUNICATIO
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4-PCC COMMUNICATION CARD • ALLEN-BRA
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THIS SIDE UP
ALLEN-BRADLEY 1784-PCC COMMUNICATIO
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4-PCC COMMUNICATION CARD • ALLEN-BRA
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COMM
STATUS
1793-OB4P
Power monitor
89
01234567
10
12 1411 13 15
Network
Status
Module
Status
CompactBlock I/O
1791D Block I/O
1791D-16B0
PanelView
TM
550/900
POWER
DIAGNOSTIC
FLT
ST
FLT
ST
ST
ST
O
K
01 2345 67
01 234567
891011 12 1314 15
891011121314 15
O
K
01 234 567
891011 12 1314 15
RXDTXD
OK
CH ACH B
OK
POWER
DIAGNOSTIC
FLT
ST
FLT
ST
ST
ST
O
K
01 2345 67
01 234567
89101112131415
89101112131415
O
K
01 234 567
89101112131415
RXD TXD
OK
CH ACH B
OK
FOUNDATION Fieldbus