User Manual PLC-3 FAMILY I/0 Instruction Manual
Scanner Hardware and Installation
Chapter 1
1-5
DH/DH+ Status Indicators
The five indicators labeled XMTG, RCVG, RDY, ERR, and DIS
(Figure 1.2) show you the status of the DH or DH+ channel.
Indicator Color When this led is on, (the scanner is)
XMTG green transmitting a message.
RCVG green receiving a message.
RDY green ready to transmit a message.
ERR red programming or communication error detected.
DIS yellow DH/DH+ connectors are disabled or duplicate
DH+ station address if blinking.
When the scanner is polling, both the XMTG and RCVG LEDs turn on.
Figure 1.2
Indicator
Locations for 1775S5 and 1775SR5 Scanner Modules
Thumbwheel switch
1775S5
Scanner
1775SR5
Scanner