KEYENCE DL-RB1A User Manual
Page 19
17
2-1
Connecting the DL-RB1A to External Devices
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The following special output occurs depending on the sensor amplifier data. For information on
conditions that produce an alarm, refer to "Pin No. 32: Alarm output".
• DL-RB1A does not output decimal points. If there is a decimal point in the sensor amplifier
data, it will be dropped.
[Ex.] When the GT2 Series is connected, the detection data "+12.3456"
is output to the DL-RB1A as "+123456".
• The number of digits sent out of the BCD output cannot be changed. (This does not affect
the number of digits displayed on the sensor amplifier.)
• The GT2 Series sensor amplifier can display up to 7 digits, but DL-RB1A can only output
up to 6 digits.
Pin No. 31: Strobe output
Strobe output is turned on when data can be read from the external device.
When the strobe output is turned off, the BCD output cannot be verified.
Pin No. 32: Alarm output
Alarm output is turned on normally. It is turned off when an alarm occurs.
When an alarm occurs, "+EEEEEE" is output as the BCD data and polarity code.
• The time after the power is turned on but before the first BCD output is confirmed
• When updating the BCD output, if the selected ID number for the sensor amplifier does not exist
• When updating the BCD output, if there is an error with the selected ID number for the sensor
amplifier
• When there is overcurrent error on one of the outputs (Pin Nos. 6 to 32)
• Until the initialization is completed if the main unit (ID: 00) is initialized when it is connected to the
GT2-100N/100P.
* For more information on errors, refer to the User's Manual of each sensor amplifier.
Sensor amplifier
Data
state
Alarm output
Sensor amplifier display
High-precision Digital
Contact Sensor
GT2 Series
-999998
No data
ON
-------
+EEEEEE
Alarm
OFF
Error display
or abnormal
*
+999999
Exceed upper limit
ON
+100.0000 or less,
or FFFF
-999999
Exceed lower limit
ON
-100.0000 or less,
or -FFFF
General Purpose
Digital
Contact Sensor
GT-70A Series
-999998
No data
ON
-------
+EEEEEE
Alarm
OFF
Error display
or abnormal
*
+999999
Exceed upper limit
ON
FFFF
-999999
Exceed lower limit
ON
-FFFF
Multi-Purpose CCD
Laser Micrometer
IG Series
-099998
No data
ON
-------
+EEEEEE
Error
OFF
Error display
or abnormal
*
+099999
Exceed upper limit
ON
99.999 or FFFF
-099999
Exceed lower limit
ON
-99.998 or less,
or -FFFF
CMOS Laser
Application Sensor
IL Series*
-099998
No data
ON
-------
+EEEEEE
Error
OFF
Error display
or abnormal
*
+099999
Exceed upper limit
ON
99.999 or FFFF
-099999
Exceed lower limit
ON
-99.998 or less,
or -FFFF
Thrubeam Laser
Detection Sensor
IB Series
-099998
No data
ON
-------
+EEEEEE
Error
OFF
Error display or
abnormal*
+999999
Exceed upper limit
ON
-99.998 or less, or FFFF
-999999
Exceed lower limit
ON
-999.98 or -FFFF
Static Sensor
SK-1000 Series
-099998
No data
ON
-------
+EEEEEE
Error
OFF
Error display
or abnormal*
+099999
Exceed upper limit
ON
99.999 or FFFF
-099999
Exceed lower limit
ON
-99.998 or less, or -FFFF
* If the source of the alarm output is on the DL-RB1A, the sensor amplifier continues to show a normal display.
When using the GT2-100 Series, “-999998” is output if the data of the ID outside the range of the valid ID setting is read.
Note