KEYENCE DL-RB1A - Manual (Page 28)

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3-1 Data Processing and Operation Modes
Communication Unit Data Update Time
After the sensor is detected, the DL-RB1A can output data after the sensor amplifier response time
(T1) * and DL-RB1A data processing time (T2) have passed.
DRQ input from an external device starts after T1 and T2 have passed.
* For more information on sensor amplifier response time, refer to the manual supplied with the
sensor amplifiers.
 Time chart
T1: Sensor amplifier response time
T2: DL-RB1A data processing time
 DL-RB1A data processing time (T2)
The processing time for T2 varies depending on the sensor amplifier calculation function and the
number of sensor amplifiers that are connected.
* ID No. 15 outputs the P.V. value for the main unit when using a calculation function other than the
reference difference display on the GT-70A Series.
During this time, ID No. 00 outputs the P.V. value for the main unit.
ID No. 15 is not used when the calculation function is not used or when reference difference display is used.
When using reference difference display, the processing time for ID Nos. 01 to14 becomes the
same as the processing time for ID No. 15.
For information on the calculation function, refer to the manual supplied with the sensor amplifiers.
Sensor amplifier
DL-RB1A
Detected data update
DL-RB1A data processing complete
Detection
T1
T2
1. Data processing time for the number of sensor
amplifiers connected without using the calculation
function (ID No.15)
When using the GT2-100N/100P, add 50 ms to the above value.
Number of connected
sensor amplifiers
Data processing time (T2)
GT-70A Series/
GT2 Series
IG Series/
IB Series
IL Series/
SK-1000 Series
1 7 ms 5 ms 9 ms
2 9 ms 10 ms 11 ms
3 13 ms 12 ms 14 ms
4 15 ms 16 ms 18 ms
5 19 ms - 20 ms
6 21 ms - 24 ms
7 25 ms - 27 ms
8 27 ms - 31 ms
9 31 ms - -
10 33 ms - -
11 37 ms - -
12 39 ms - -
13 43 ms - -
14 45 ms - -
15 49 ms - -
2. Data processing time for the number of
sensor amplifiers connected while using
the calculation function (ID No.15)
When using the GT2-100N/100P, add 75 ms to the
above value.
Number of connected
sensor amplifiers
T2
1 10.5 ms
2 13.5 ms
3 19.5 ms
4 22.5 ms
5 28.5 ms
6 31.5 ms
7 37.5 ms
8 40.5 ms
9 46.5 ms
10 49.5 ms
11 55.5 ms
12 58.5 ms
13 64.5 ms
14 67.5 ms
15 73.5 ms