User`s manual
Table Of Contents
- 535 User's Manual
- Table of Contents
- Chapter 1: Introduction
- Chapter 2: Basic Interface
- Chapter 3: Installation
- Chapter 4: Hardware Set Up
- Chapter 5: Software Configuration
- Chapter 6: Tuning
- Chapter 7: Applications
- Control Type
- Alarms
- Duplex Control
- Slidewire Position Proportioning Control
- Velocity Position Proportioning Control
- Staged Outputs
- Retransmission
- Digital Inputs
- Remote Setpoint
- Multiple Setpoints
- Multiple Sets of PID Values
- POWERBACK
- Self Tune–POWERTUNE®
- Ramp-To-Setpoint
- Input Linearization
- Load Line
- Security
- Reset Inhibition
- Process Variable Reading Correction
- Serial Communications
- Cascade Control
- Ratio Control
- Appendix 1: Menu Flowcharts
- Appendix 2: Parts List
- Appendix 3: Troubleshooting
- Appendix 4: Calibration
- Appendix 5: Specifications
- Appendix 6: Glossary
- Appendix 7: Isolation Block Diagram
- Return Procedures and Warranty Information
- 500 Series Process Controllers User's Manual
Install / Wire
535 User's Manual Chapter 3 19
• Mechanical relay or solid state relay modules must be installed in
output sockets 1 and 2.
• When using velocity control (no slidewire feedback), there are no
connections at terminals 10, 11 and 12.
• Use of the slidewire feedback is optional
Serial Communications
A twisted shielded pair of wires should be used to interconnect the host and
field units. Belden #9414 foil shield or #8441 braid shield 22-gauge wire are
acceptable for most applications. The foil shielded wire has superior noise
rejection characteristics. The braid shielded wire has more flexibility. The
maximum recommended length of the RS 485 line is 4000 feet. Termination
resistors are required at the host and the last device on the line. Some RS 485
cards/converters already have a terminating resistor. We recommend using
our RS-232/RS-485 converter. The communication protocol is asynchronous
bidirectional half-duplex, hence the leads are labelled Comm + and Comm –
.
PC
or other host
535
Terminals
RS-485
port
Twisted, shielded
To "Comm –" terminal of
next Moore Industries device
To "Comm +" terminal of
next Moore Industries device
Comm +
Comm –
Use a 60 to 100 Ohm terminating resistor
connected to the two data terminals of
the final device on the line.
CAUTION
The shield needs to be connected continuously
but only tied to one ground at the host.
Failure to follow these proper wiring practices
could result in transmission errors and other
communications problems.
26
27
Figure 3.16
Serial Communications Terminals