Keyence Visual KV Series Manual de usuario descargar pdf (Pagina 343)

7.3 Loading Text Data

3-319

Chapter 7 Serial Communication

Note 1: Be sure to transmit a break signal for the first serial communication with a

personal computer after the KV-P3E(01) handheld programmer is connected to the

KV, or after the "KV IncrediWare (DOS)" or "LADDER BUILDER for KV" program-

ming support software is evoked.

A break signal initializes the communication setting for the KV. If you cannot transmit

a break signal, turn the KV OFF once to initialize the communication setting. The KV

will not receive text data unless its communication setting has been initialized.

Note 2: If [ETX] exists at some point in the text data, the KV writes the data before

[ETX] into the data memory. The data after [ETX] is not written.

Note 3: If KV receives text data while special utility relay 2804 (2809)

is ON, the

received data is not written into the data memory. In this case, special utility relay

2802 (2807)

turns ON for one scan.

Note 4: When parity errors or other errors occur during text data reception, the

received data is not written into the data memory. In this case, special utility relays

2802 (2807) and 2803 (2808)

turn ON for one scan.

Note 5: The KV-10xx includes only communication port A.

*1: 2804 with KV-300/10/80 *2: 2805 with KV-300/10/80 *3: 2806 with KV-300/10/80

7.3.2 Transmitting Text Data

The KV transmits text data written into its data memories (DM1100 to DM1199 for

communication port A, DM1300 to DM1399 for communication port B), one byte per

data memory in ASCII code.

Transmission data format and internal data memories

When transmitting data from the KV, write the data into the data memory in the

following format.

The KV writes "00" into the high-order 8 bits and text data in ASCII code into the

low-order 8 bits of the data memory.

Note: The KV-10xx includes only communication port A.

Data 99

Data memory bits

High-order 8 bits (00)

Low-order 8 bits (ASCII code)

Data memory

1st DM

(Byte count of data)

2nd DM

3rd DM 4th DM

100th DM

Transmitted data

Data 1

Data 2

Data 3

.oNyaleR

) AT R O P (

.oNyaleR

) BT R O P (

.oNyaleR

) 08 / 01 / 003 - VK(

no i t p i r cseD

108260824082

a t adt xe tnehwnac senor o fNOsn r uT

. dev i ece rneebsah

208270825082

a t adt xe tnehwnac senor o fNOsn r uT

,NOs i1082e l i hwdev i ece rneebsah

.NOs i3082nehwr o

308280826082

a t adt xe tnehwnac senor o fNOsn r uT

. de l i a fsahno i t pece r

a t aD

y r omem

AT R O P

0011MD1011MD2011MD8911MDo t3011MD9911MD

BT R O P

0031MD1031MD2031MD8931MDo t3031MD9931MD

/ 003 - VK

08 / 01

0039MD1039MD2039MD8939MDo t3039MD9939MD

. o Na t a D

t nuoce t yB1ataD2ataD89ataDot3ataD99ataD

15 00

0 0 0 0 0 0 0 0 0 1 1 0 0 0 1

KVNKA Chap 07.p65 08.3.11, 0:11 PM319

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