Language Specifications - Hitachi SJ700-2 Series Instruction Manual

2.1 Language Specifications

The table below lists the programming-related specifications of the easy sequence function.
Item
Programming language
Input device
Max. program size
Programming support
function (programming
software)
Execution format
External input
External output
Instructions
Number of variables
Chapter 2 Creation and Execution of a User Program
Basic-like language
Windows (DOS/V) personal computer (OS: Windows 98SE, Windows 2000, or Windows XP)
1024 steps
(The internal storage capacity of the inverter is 1024 steps or 6 kilobytes.)
- Editing (on Windows)
- Display (on Windows)
- Program syntax check (on Windows)
- Downloading, uploading, and full clearance of program
Execution by interpreter in an execution cycle of 2 ms per instruction
(possible subroutine call with nesting in up to 8 layers)
Contact signal
Program run signal input
General-purpose input
terminals
General-purpose analog input
General-purpose output terminal
General-purpose analog output
(1) Program control instructions
- Loop (for)
- Unconditional branching (goto)
- Conditional branching (if then, ifs then, select case, until, and while)
- Time control (wait)
- Subroutine (call, sub)
- Others (entry, end, cont, inc, and dec)
(2) Arithmetic instructions
- Arithmetic operation (+, -, *, /)
- Remainder (mod)
- Substitution (=)
- Absolute value (abs)
- Logic operation (or, and, xor, and not)
(3) Input/output control
- General-purpose input/output (bit input, word input, bit output, and word output)
- Reading of inverter input terminal
(4) Timer control
- Delay operation
- Timer control
(5) Parameter control
- Rewriting of parameters by reselecting code on the operator's display
User-defined variable
Internal user variable
Set frequency
Acceleration time
Deceleration time
Monitoring variable
General-purpose input contact
General-purpose output contact
Internal user contact
Internal timer contact
Inverter input/output
Specification
24 V open-collector input (using intelligent input terminals)
Always assigned to the FW terminal
Up to 8 terminals (X (00) to X (07))
XA (0): 0 to 10 V (O terminal)
XA (1): 4 to 20 mA (OI terminal)
XA (2): 0 to 10 V (O2 terminal)
Up to 6 terminals (Y (00) to Y (05))
YA (0): Assignable to the FM terminal
YA (1): Assignable to the AM terminal
YA (2): Assignable to the AMI terminal
U (00) to U (31) (32 variables)
UL (00) to UL (07) (8 variables)
SET-Freq
ACCEL
DECEL
FM, Iout, Dir, PID-FB, F-CNV, Tmon, Vout, Power,
RUN-Time, ON-Time, PlsCnt, POS, STATUS,DCV,
ERR CNT, ERR (1), ERR (2), ERR (3), ERR (4),
ERR (5), and ERR (6)
X (00) to X (07) (8 contacts)
Y (00) to Y (05) (6 contacts)
(including a relay contact output)
UB (00) to UB (07) (8 contacts)
TD (0) to TD (7) (8 contacts)
Specification by code on the remote operator's display
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