Rockwell Automation 2711-KA1_KC1_TA1_TA4_TC1_TC4 PanelView Terminals for DOS/Windows - Manual (Page 93)

Troubleshooting
Appendix B
B-3
Consult the following table to identify PLC communication problems.
Problem Cause What to do
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
PLC Communication Lost" message on the
PanelView 1200 terminal.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
PLC controller is in Program or Remote Program
mode.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Change PLC controller to Run mode.
Cable problem. Check termination and cable pinout.
ББББББББББББ
ББББББББББББ
ББББББББББББ
ББББББББББББ
Incorrectly defined terminal as Last Chassis.
ББББББББББББ
ББББББББББББ
Set Last Chassis to No for that rack assignment.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Rack assignments in the PanelView 1200
terminal and the PLC do not match.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Make sure rack assignments in the PLC
controller match those in the PanelView 1200
terminal.
ББББББББББББ
Б ББББББББББ Б
Б ББББББББББ Б
ББББББББББББ
ББББББББББББ
Б ББББББББББ Б
Б ББББББББББ Б
ББББББББББББ
Terminating resistor not installed properly. ББББББББББББ
Б ББББББББББ Б
Б ББББББББББ Б
ББББББББББББ
The terminating resistor must be installed at the
PLC and at the end of the link:
150W 1/2 watt resistor for 57.6 or 115.2 kbaud
82W 1/2 watt resistor for 230 kbaud
The PanelView 1200 terminal and Scanners
Remote I/O baud rate do not match.
Change the Remote I/O baud rate in the
PanelView 1200 terminal or the scanner so they
match.
PLC Communication Lost" message when
using the PanelView 1200 terminal with PLCĆ5.
The PanelView 1200 terminal has been
assigned to multiple or partial racks when
firmware revision of PLCĆ5 does not support
partial rack addressing.
Configure the PanelView 1200 terminal as a
single full rack.
Upgrade PLCĆ5/15 to Series B Revision H or
later.
Upgrade PLCĆ5/25 to Series A Revision D or
later.
PLC controller is not configured to recognize the
PanelView 1200 terminal's rack assignments.
Refer to your PLCĆ5 User's Manual regarding
Auto Configuration.
Б ББББББББББ Б
ББББББББББББ
Periodic PLC Communication Lost" when using
1772ĆSD2 scanner with PLCĆ2s.
Б ББББББББББ Б
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Must use 1772ĆSD2 scanner Rev. 3 or later.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Rapid blinking of PLC Communication Lost"
when using 1775ĆS4A scanner with a PLCĆ3.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Must use 1775ĆS4A scanner series B or later.
PLC Communication Lost" when using SLC 500
1747ĆSN Scanner Module.
The 1747ĆSN Scanner Module is not properly
configured.
Refer to 1747ĆRIO Scanner User's Manual
regarding Specialty I/O Configuration and how to
configure Mfiles and Gfiles.
Verify that the PanelView 1200 terminal and the
1747ĆSN Scanner Module Remote I/O baud
rates are set the same.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Discrete I/O works but block transfer does not.
No PLC Communication Lost" message. Using
PLCĆ5/15, partial rack addressing.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Must use PLCĆ5/15 series B Rev. J or later.
Discrete I/O works but block transfer does not.
No PLC Communication Lost" message.
Block transfer assignments in the PanelView
1200 terminal do not match block transfer
instructions in PLC.
Make sure PLC block transfer instruction
parameters match the PanelView 1200
parameters.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
PLC Controller rack fault on rack assigned to the
PanelView 1200 terminal. ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Specified No for Last Chassis when the
PanelView 1200 terminal is the last chassis in
that rack.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Set Last chassis to Yes for that rack assignment.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
PLC Communication Lost" message and rack
fault on rack assigned to the PanelView 1200
terminal.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
MisĆmatched baud rate on the PanelView 1200
terminal and PLC controller.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Specify same baud rate for the PanelView 1200
terminal and PLC controller.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Multiple devices configured for the same rack
assignment.
ББББББББББББ
Б ББББББББББ Б
ББББББББББББ
Multiple remote I/O devices must have unique
rack assignments.
PLC Communication Problems