Host Startup; Wiring The St95 (Host/Client) To A Plc/Dcs; Installation For Clients - Ametek BrightTEK ST9 Series Operator's Manual

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2.8

Host Startup

Use the magnet to start the Host. Hold the magnet
over the magnet symbol on the lid for one second, then
remove.
INDICATOR LIGHTS
Condition LED Description
A slow green LED flashes followed by the green & red
Power ON
LEDs alternating flashes.
Red LED will go out and the green LED will begin to
Active on Cellular
flash slowly while attempting to register on the cellular
Network
network.
Connected to
Green LED will remain on
Cellular Network
Successful Call Green LED will flash, then remain off
For Unsuccessful Calls, the Red LED will remain on and the Green LED will
flash the amount of times corresponding to the error number.
2.9

Wiring the ST95 (Host/Client) to a PLC/DCS

• When a Programmable Logic controller is used it nor-
mally provides the +24 Volts. In this case you must be
aware that the grounds in the ST95 are common. Con-
necting two channels of the PLC to the channels of the
ST95 will likely result in a ground loop. For this reason,
an external 4/20mA Isolator should be used. An Isolated
Channel Card in the PLC may also be used.
• Wire channel 1 of the PLC positive and negative wires
to the colors marked (CKT1, IN1-) and (CKT GND).
• Wire channel 2 of the PLC positive and negative wires
to the colors marked (CKT2, IN1-) and (CKT GND).

2.9.1 Installation for Clients

Do not open the lid to start the activation process.
Determine if you have an ST95 Cellular Uplink Host or
ST95 Uplink Client:
• Hosts units begin with 95H or 95W and have the
magnet icon on the label
• Client units begin with 95L and do NOT have the
magnet icon on the label.
If you have a 95L, the device must be opened to
activate.
On Host/Client Pairing, always set up the host units first.
Host Units: Use the magnet by placing it on the lid
where the magnet symbol is shown.
• After one second, remove the magnet and you should
observe the GREEN LED light flashing through the cover.
• For BrightTEK updates that are not scheduled, use
the magnet for this purpose. Magnetic operation is
permissible in the hazardous area.
41-622 BrightTEK ST9x Operator Manual
™