PPC-2000 User’s Guide
Chapter 2: Hardware Installation
Doc.# 30002-00 Rev 2.3
Watlow Anafaze
81
Connecting RS-232 Communications
RS-232 may be used for communications between one PPC and
a host device over cables of up to 50 feet in length.
RS-232 does not support more than two devices on a network.
See
. RS-232 may be used to connect a computer,
through a 232/485 converter, to an RS-485 communications
network with up to 32 PPC controllers. See
Figure 2.69 Connecting One PPC to a
Computer Using RS-232
Connecting RS-485 Communications
An RS-485 communications network can connect up to 32 PPCs
directly with a host device equipped with an RS-485 port or via
a converter to a host’s RS-232 port. See
. RS-485
wiring can be used over much greater distances than RS-232.
Figure 2.70 Connecting Multiple PPCs to a
Computer Using RS-485
RS-232 Cable
Serial Port
DB-9 or DB-25
RS-232 4-pin RJ-type
serial port
232 Communications
optically
isolating
232 to 485
converter
no more
than 10 ft.
PPC 1
PPC 2
PPC N
485
flat cable
with RJs
485 Communications
terminal
block
external
resistor
termination
shielded twisted pair cable
Summary of Contents for Anafaze PPC-2000
Page 2: ......
Page 14: ...Table of Contents PPC 2000 User s Guide viii Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 24: ...List of Tables PPC User s Guide xviii Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 36: ...Chapter 1 Overview PPC 2000 User s Guide 12 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 112: ...Chapter 2 Hardware Installation PPC 2000 User s Guide 88 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 184: ...Chapter 4 Troubleshooting PPC 2000 User s Guide 158 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 296: ...Chapter 7 Specifications PPC 2000 User s Guide 268 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 310: ...Appendix A Modbus Protocol PPC 2000 User s Guide 282 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 311: ...Doc 30002 00 Rev 2 3 Watlow Anafaze 283 B Appendix B Declaration of Conformity...
Page 319: ...PPC 2000 User s Guide Glossary Doc 30002 00 Rev 2 3 Watlow Anafaze 291...
Page 320: ...Glossary PPC 2000 User s Guide 292 Watlow Anafaze Doc 30002 00 Rev 2 3...