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3-4 Message Communication

3-25

Communicating with the GT2 Series

- EtherNet/IP Compatible Network Unit DL-EP1 User’s Manual (GT2) -

Message communication uses objects and services to send and receive data.

Executing a service (1) for a DL-EP1 object enables data read (2), parameter

change (3), specified operation execution (4), and read of the number of decimal

places (5), etc.

Taking DL Object as an example, one instance is provided for each of the sensor

amplifiers connected to the DL-EP1. Reading the attributes corresponding to the

comparator values (P.V. values) of the respective instances using a service makes it

possible to read the comparator values (P.V. values) of the sensor amplifiers

corresponding to the respective instances.

Objects and Services

Parameter change

(3)

Operation command execution

(4)

Read of the number of decimal places

(5)

DL-EP1 or sensor amplifier connected to DL-EP1

Object

(1)

(2)

Service

Data output

ID: 0324H Output

Attribute

ID: 0325H

Current value (instantaneous flow rate)

ID: 0326H Raw value (R.V. value)

DL Object

(Class ID: 67H)

DL-EP1

Instance ID: 00H

ID number 1 sensor

Instance ID: 01H

ID number 2 sensor

Instance ID: 02H

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Keyence DL-EP1 Manual do Utilizador Página 55