Keyence DL-RS1A/FD-MH Manuel d'utilisateur Page 1

RS-232C Communication Unit DL-RS1A User's Manual (FD-MH Edition) Read this manual before using the system in order to achieve maximum performance

8Commands and Responses Error responseIf DL-RS1A could not receive a command from the external device or if the received command included an error,

9Commands and Responses Read output states and data from all sensor amplifiers (MS command)CommandResponseError response* The data length is different

10Parameters of Commands and ResponsesThis section describes the parameters used with various commands and responses.Electromagnetic Digital Flow Sens

11Parameters of Commands and Responses*2 R: Indicates that the data type can only be read from the sensor amplifiers.*3 When the instantaneous flow ra

12Parameters of Commands and Responses*1 In the Data format column, "*" signifies a number from "0 to 9".*2 Indicates that the dat

13Parameters of Commands and Responses Error numbersThe following table lists the error numbers that are returned as error responses when errors occu

14Communication Response Time DRQ inputThe data read in response to a DRQ input is the buffered data that DL-RS1A periodically retrieves from the sen

15Communication Response Time T4 (DL-RS1A command processing time)The processing time varies according to the command sent from the external device.●

16SpecificationsPerformance SpecificationsThe following table shows the performance specifications for DL-RS1A.* The number of connectable sensor ampl

17TroubleshootingProblem Cause ActionThe power indicator (POWER) does not light up.Power is not supplied.Make sure that the voltage of the power suppl

IntroductionThis manual provides an overview of the RS-232C communication unit DL-RS1A and describes the functions and procedures of the unit.Be sure

Revision HistoryDate of printing Version Revision contents February 2010February 2011Released for each model. First editionFirst revisionWARRANTIES

A5WW1-MAN-1090Copyright (c) 2011 KEYENCE CORPORATION. All rights reserved.195013E 1021-1 96143E Printed in JapanSpecifications are subject to chan

1ContentsSafety PrecautionsGeneral CautionsHandling ErrorsOperating PrecautionsInstallation environmentNoise countermeasuresBefore Using the UnitCheck

2Before Using the UnitChecking the Package ContentsBefore using the DL-RS1A, check that the following items are all included.All possible care was tak

3Before Using the Unit(5) Alarm indicatorThis indicator lights up in red. For information on the actions you should take when an alarm occurs, refer t

4Connecting the Unit to Sensor AmplifiersConnecting the Unit to Sensor AmplifiersYou use DL-RS1A by connecting it to sensor amplifiers. The connection

5Connecting the Unit to External DevicesCommunication Terminal BlockYou can connect external devices such as a PC or PLC to the communication terminal

6Connecting the Unit to External DevicesSample wiring*1 Insulate either the black or black/white cable that is not used.*2 Connect the shield wire to

7Commands and ResponsesOverview of Commands and Responses Command formatYou can send specific commands based on ASCII codes from an external device t