Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module User Manual
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Glossary-4
P
PCCC (Programmable Controller Communications Command)
PCCC is the protocol used by some controllers to communicate with
devices on a network. Some software products (for example,
DriveExplorer and DriveExecutive) also use PCCC to communicate.
PowerFlex 4-Class (Component Class) Drives
The Allen-Bradley PowerFlex 4-Class family of drives supports DSI and
includes the PowerFlex 4, PowerFlex 4M, PowerFlex 40, PowerFlex
40P, and PowerFlex 400. These drives can be used for applications
ranging from 0.2…110 kW (0.25…150 HP).
R
Reference/Feedback
The Reference is used to send a setpoint (for example, speed, frequency,
torque) to the drive. It consists of one 16-bit word of output to the
module from the network.
Feedback is used to monitor the speed of the drive. It consists of one
16-bit word of input from the module to the network.
RSLogix 500/5000
RSLogix software is a tool for configuring and monitoring controllers to
communicate with connected devices. It is a 32-bit application that runs
on various Windows operating systems. Information about RSLogix
software can be found at
.
RSNetWorx for DeviceNet
A software tool for configuring and monitoring DeviceNet networks and
connected devices. It is a 32-bit application that runs on various
Windows operating systems. Information about RSNetWorx for
DeviceNet software can be found at
.
RTU Baud Rate
The baud rate is the speed at which data is transferred when the
1769-SM2 module is operating in Multi-Drive mode and the DSI I/O
Cfg parameter for a channel is set to “5” (RTU Master). The available
baud rates are:
38.4K bps
2400 bps
19200 bps
1200 bps
9600 bps
600 bps
4800 bps
300 bps