Keyence DL-RS1A Manual de usuario descargar pdf (Pagina 19)

Communication Response Time

■ T5 (Response send time from DL-RS1A)

The time required to send a response varies depending on the communication speed, data bit

length, and number of bytes.

For information on the communication settings, refer to page 2.

The response time can be calculated using the following formula:

T5 = (number of bytes) x (data bit length + 4) / (communication speed)

● Number of bytes for different commands

SR command : (number of bytes in the read data) + 12

M0 command : {(number of bytes in the read data) + 1} u number of connected sensor amplifiers + 4

MS command : {(number of bytes in the read data) + 3} u number of connected sensor amplifiers + 4

DRQ input : {(number of bytes in the read data) + 3} u number of connected sensor amplifiers + 4

SW command : 11

AW command : 8

* For information on the number of bytes in the write data and the number of bytes in the read data,

refer to "Parameters of Commands and Responses" (page 11).

Sample calculation

Number of bytes Data length Communication speed Response time

21 8 bit 9600 bps 26 ms

114 8 bit 9600 bps 143 ms

21 7 bit 38400 bps 6 ms

114 7 bit 38400 bps 33 ms

Communication Response Time

■ T6 (Sensor amplifier settings change time)

For information on the calculation function, refer to the manual supplied with the sensor amplifiers.

● When calculation function of sensor amplifiers is OFF

T6 = 0 ms for SW and AW commands; the sensor amplifiers complete modifying their settings during

the T4 period.

* This table also applies to the sensor amplifiers that do not have the calculation function.

● When calculation function of sensor amplifiers is ON

SW and AW commands both require the processing time shown below.

With the GT2-100, 50 ms is added to each value in the table.

Number of connected sensor amplifiers Settings change time (T6)

17 ms

29 ms

313 ms

415 ms

519 ms

621 ms

725 ms

827 ms

931 ms

10 33 ms

11 37 ms

12 39 ms

13 43 ms

14 45 ms

15 49 ms

Important

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Keyence DL-RS1A Manual de usuario Pagina 19

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