Chapter 2: Hardware Installation
PPC-2000 User’s Guide
82
Watlow Anafaze
Doc.# 30002-00 Rev 2.3
The host computer uses one twisted pair to send messages to
any PPC on the network. All the PPCs receive all the messages.
The one PPC addressed by a particular message uses the other
twisted pair to respond. This twisted pair is shared by the
transmitters of all the PPCs on the network. Only one PPC
transmits at a time.
Therefore, one twisted pair connects the transmitter terminals
at the host computer or converter to the receivers on each of the
controllers. The second twisted pair connects the computer or
converter’s receiver to the transmitters on all the PPCs on the
network.
illustrates this.
Network wiring should approximate a daisy chain as closely as
possible. Keep the distance from the point at which the wires
are split to the PPC as short as possible. Long spurs can cause
destructive interference of the signals.
Figure 2.71 RS-485 Wiring
485 Terminal Block
The 485 terminal block accepts an RJ12 cable connector and
converts each line on the cable to a screw terminal. Use the 485
terminal block to wire multiple PPC-2000 controllers together
on the same 485 network. Pins on the terminal block are
designated 1 to 6. The function and number of each pin
corresponds to the function and pin numbers of the 485 ports
on the PPC-2010 module.
PPC 1
PPC N
TXA/TDA/TX-
DC Common
Yellow (5)
Black (2)
Green (4)
Red (3)
White/Blue (1)
RA-
RB+
TA-
TB+
Signal
Common
Not Used
External
Termination
Resistor
RA-
RB+
TA-
TB+
Signal
Common
Not Used
TXB/TDB/TX+
RXA/RDA/RX-
RXB/RDB/RX+
Color (RJ Pin)
Converter or Host
Yellow (5)
Black (2)
Green (4)
Red (3)
White/Blue (1)
Color (RJ Pin)
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...