Take Control with Logix
Rockwell Automation’s Logix offer users compatibility of control in a variety of platforms, including:
• ControlLogix™, a high-performance, multi-processing platform
• ProcessLogix™, a cost-effective distributed control system (DCS) for process applications
• SoftLogix™, PC-based control from the PLC leader
• FlexLogix™, FLEX I/O expanded to include distributed control
• CompactLogix™, value-focused compact modular I/O coupled with machine control.

Data Highway Plus (DH+) channel offers:
• communication rates of 57.6 Kbaud, 115.2 Kbaud, and 230.4 Kbaud.
• maximum network length of 3048 m (10,000 ft) at 57.6 Kbaud
• Belden 9463 (blue hose) cable connection between nodes (daisy chain connection).
• built-in isolation.
PV Rate and Associated Alarm
Word 10 and Alarm Bit I:e.4/05 for Channel 1
The PV Rate is a setpoint with an associated alarm that indicates when
the temperature is rising too rapidly. If the zone’s PV has risen more
than this setpoint in one second (in auto mode), the module sets the
PV rate alarm bit (I:e.4/05, loop 1). The module only reports this alarm - no action is taken.
DH-485 channel offers:
• configurable isolation via the 1747-AIC or 1761-NET-AIC interfaces.
• maximum network length of 1219 m (4000 ft).
• RS-485 electrical specifications.
• Belden 9842 or Belden 3106A cable connection between nodes (daisy-chain connection).
Processor Communication Options
The SLC 500 processors support several communication options.
The following sections describe the available physical connections and protocol options used by the SLC 500 processors.
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