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Leds, Screw terminals – Wavetronix Click 400 (900 MHz radio) (CLK-400) - User Guide User Manual

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CHAPTER 7 • CLICK 101

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Note

After you have completed programming the device using Click Supervisor, remove
the RS-232 serial cable from the DB-9 port. This will prevent computer equipment
(like docking stations) from holding the RS-232 TD line high. If the TD line is inadver-
tently held high, the Click 101 will transmit on the RS-485 bus, but will not receive any
data from connected sensors.

Like many of the other Click devices, the Click 101 also acts as an RS-232 to RS-485 con-

verter. To disable the normal polling routine and enable serial conversion, a passcode mes-

sage must first be sent over one of the ports. SmartSensor Manager automatically sends

a passcode message when a connection is made to a side-fire sensor. This allows you to

configure any of the sensors on the RS-485 bus via the DB-9 connector on the front of the

Click 101. The normal polling routine will resume operation after 10 seconds of inactivity

on the ports. SmartSensor Manager HD sends a passcode message once every few seconds

to keep the normal polling routine of the Click 101 suspended. SmartSensor Manager for

the 105 sensor only sends passcode messages on some screens, so you may run into situa-

tions where normal polling will resume while connected to a 105 sensor.

The passcode message can be one of those shown in Table 7.1:

C String Format

Hex Byte Format

“X5/r”

0x58 0x35 0x0D

“Z1/r”

0x5A 0x31 0x0D

“Z2/r”

0x5A 0x32 0x0D

Table 7.1 – Passcode Messages that Enable Serial Conversion

LEDs

The Click 101 faceplate contains 16 LEDS. During normal polling, each LED lights up when

the associated digital output is active.

If normal polling is suspended and the device is powered, the PWR (red) LED will light up

and the RD (yellow) LED will activate each time data is received on a communication port.

The TD (green) LED will not activate each time data is transmitted on a communication

port. The green LED is used during normal polling to indicate that output 15 is active, and

it is also used during manual configuration to select the autobaud configuration task.

Screw Terminals

The screw terminals labeled 1–16 on the top and bottom of the Click 101 are contact closure

outputs that can be connected to a traffic controller or data logger. These digital outputs are

contact closure outputs that require a logical ground connection.

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