Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual X20 drive signal

3. Instruction Set

X20 start signal

Y20~Y27 data		A B			C D		H
						T : scan time(ms)
Y30 scan signal	T		T	T

Y31 being executed

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.

M1002

SET M1027

X20

PR D0 Y20

X20: drive signal

first letter

T T T

Y30: scan signal

Y31: execution status

M1029: execution completed flag

Points to note:

last letter

T : scan time or interrupt time

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.

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