Delta DVP-ES2 User Manual download pdf (Page 315)

100

101

3. Instruction Set

3-199

TTT

ABCD H

X20 start signal

Y20~Y27 data

Y30 scan signal

Y31 being executed

T : scan time(ms)

Program Example 2:

1. PR instruction supports ASCII data output of 8-bit data string when M1027 = OFF. When

M1027 = ON, the PR instruction is able to execute an output of 1~16 bit data string.

2. When M1027 = ON and X20 = ON, this instruction will designate Y20 (lowest bit) ~ Y27

(highest bit) as the output points and Y30 as scan signals, Y31 as execution flag. In this mode,

users can execute an output for 16 letters in sequence. In addition, if the drive contact X20 is

OFF during execution, the data output will stop until a full data string is completed.

3. The data 00H (NULL) in a data string indicates the end of the string and the letters coming

after will not be processed.

4. If the drive contact X20 is OFF during execution, the data output will stop until a full data string

is completed. However, if X20 remains ON, execution completed flag M1029 will not be active

as the timing diagram below.

X20

PR D0 Y20

M1002

SET

M1027

TTT

last letter

first letter

T : scan time or

interrupt time

X20: drive signal

Y30: scan signal

Y31: execution status

M1029: execution

completed flag

Points to note:

1. Please use transistor output for the output points designated by this instruction.

2. When using this instruction, please fix the scan time or place this instruction in a timer interrupt

subroutine.

1 2 ... 310 311 312 313 314 315 316 317 318 319 320 ... 701 702

Delta DVP-ES2 User Manual Page 315

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