Operating instructions

PTQ-MCM ♦ Quantum / Unity Platform Diagnostics and Troubleshooting
Modbus Communication Module
Page 94 of 139 ProSoft Technology, Inc.
April 29, 2008
7.2 LED Status Indicators
The LEDs will indicate the module's operating status as follows:
ProTalk
Module
Color Status Indication
On
Data is being transferred between the module and a
remote terminal using the Configuration/Debug port.
DEBUG Green
Off
No data is being transferred on the Configuration/Debug
port.
On Port is communicating. PRT1 Green
Off Port is not communicating.
On Port is communicating. PRT2 Green
Off Port is not communicating.
Off The PTQ-MCM is working normally.
ERR1
CFG Fail
Red
On
The PTQ-MCM module program has recognized an
application error. This LED will also be turned on if any
command presents an error.
On
Time-out. The post sent a Modbus command but did not
receive a response from the slave.
ERR2
P1 Fail
Red
Off Normal Operation
On
Time-out. The post sent a Modbus command but did not
receive a response from the slave.
ERR3
P2 Fail
Red
Off Normal Operation
On
The LED is on when the module recognizes a processor
and is able to communicate if the [Backplane Data
Exchange] section specifies data transfer commands.
Active Green
Off
The LED is off when the module is unable to speak with
the processor. The processor either absent or not
running.
Off The battery voltage is OK and functioning. BAT Low Red
On
The battery voltage is low or the battery is not present.
The battery LED will illuminate briefly upon the first
installation of the module or if the unit has been un-
powered for an extended period of time. This behavior is
normal, however should the LED come on in a working
installation please contact ProSoft Technology.
Green N/A Not Used E-Link
N/A Not Used
Green N/A Not Used E-Data
N/A Not Used
If your module is not operating, and the status LEDs are not illustrated in the
table above, please call ProSoft Technology for technical assistance.