60
4-2-1
Basic Command Transmission Program
(PC to Position Control Unit)
C
0
B
0
WRIT(87)
N
S
D
EQ
B
0
A
0
C
0
C
R
A
0
: Start input (differentiated input)
B
0
: Status-holding work bit
C
0
: Transmission completed work bit
C
R
: Command Ready (bit 15 of first word ON when READ (85) is executed)
N
0
: Differentiation no.
N: Transferred word count
S: Transfer source start word
D: I/O word for transfer destination (word n occupied by the PCU)
EQ: Equals flag
4-2-2
Basic Status Flag Reception Program
(Position Control Unit to PC)
Status flag reception should be written at the end of the PC program.
READ(88)
N
S
D
Normally ON
N: Transfer word count (17 words minimum)
S: Transfer source I/O word (word n + 1 occupied by the PCU)
D: Transfer destination start word (see
Section 5-2 Status Word Allocation
)
Refer to your PC’s
Operation Manual
for further details on the Intelligent I/O
Read and Write Instructions.
PC Programs
Section 4-2