Delta DVP-ES2 - Manual (Page 268)

D V P - E S 2 / E X 2 / S S 2 / S A2 / S X 2 / S E O p e r a t i o n M a n u a l - P r o g r a m m i n g
3 - 1 5 2
API Mnemonic Operands Function
60 IST Initial State
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Bit Devices Word devices Program Steps Type
OP X Y M S K H KnX KnY KnM KnS T C D E F
S * * *
D
1
*
D
2
*
IST: 7 steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S: Source device for assigning pre-defined operation modes (8 consecutive devices). D
1
The
smallest No. of step points in auto mode. D
2
: The greatest No. of step points in auto mode.
Explanations:
75. The IST is a handy instruction specifically for the initial state of the step ladder operation
modes.
76. The range of D
1
and D
2
: S20~S911, D
1
< D
2
.
77. IST instruction can only be used one time in a program.
Program Example 1:
M1000
IST X20 S20 S60
S: X20: Individual operation (Manual operation)
X21: Zero return
X22: Step operation
X23: One cycle operation
X24: Continuous operation
X25: Zero return start switch
X26: Start switch
X27: Stop switch
78. When IST instruction is executed, the following special auxiliary relays will be assigned
automatically.
M1040: Movement inhibited
M1041: Movement start
M1042: Status pulse
M1047: STL monitor enable
S0: Manual operation/initial state step point
S1: Zero point return/initial state step point
S2: Auto operation/initial state step point
79. When IST instruction is used, S10~S19 are occupied for zero point return operation and
cannot be used as a general step point. In addition, when S0~S9 are in use, S0 initiates
“manual operation mode”, S1 initiates “zero return mode” and S2 initiates “auto mode”. Thus,
the three step points of initial state have to be programmed in first priority.