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Hitachi

Information & Control Platforms

The system supports three languages and makes a comfortable operating environment a reality on Windows ®. *1

  • Programmable on a general-purpose PC (a DOS/V PC). *2
  • There is a choice of interfaces : directly connected to RS-232C, directly connected to Ethernet, or connected to Ethernet LAN.
  • Network compatibility (exclusive control).
  • There is a choice of three languages for programming and monitoring.
  • Programs and comments of the MS-DOS version (PC-98) can be used.
*1
Compatible with Windows ® 95/98/2000/XP.
*2
The system does not support the NEC PC 98 series.

Ladder diagram

Example of display

  • Nesting (subroutine) possible.
  • Memory direct read/write capability (MCS).
  • Time charting capability.
  • Preview capability.
  • Address search capability.
  • Address collective renaming capability.
  • Comments can be edited by using a universal text editor, spreadsheet and other software.

HI-FLOW

Example of display

  • PI/O can be turned on and off directly.
  • Execution points can be displayed.
  • The timer can be used repeatedly unless executed simultaneously.

C language

Example of display

  • Real-time multitask is used.
  • The world standard ANSI C language is used.
  • Complex arithmetic is also possible.

Interface configuration

Explanation chart of Directly connected to R-232C, Direct connection and Connected to Ethernet LAN

Table of registers

Item Address number
(number of points)
Registers common for ladder diagram and HI-FLOW X External input   000 to FFF (4,096 points) Note
Y External output   000 to FFF (4,096 points) Note
R Internal register   000 to FFF (4,096 points)
M Expanded internal register   000 to FFF (4,096 points)
G Global link register For CPU linkage 000 to FFF (4,096 points)
E Event register For indicator display 000 to 0FF (256 points) Note
EW Event register (word-type) For analog input/output and pulse input 400 to FF0 (192 w)
FW Data register (word-type) For variables (16 bits/word) 000 to BFF (3,072 w)
DW Data register (word-type) For variables (16 bits/word) 000 to FFF (4,096 w)
Only for ladder K Keep relay Power failure retention latch type 000 to 1FF (512 points)
T On-delay timer T000 to T00F can be configured on a 10-ms timer,
Setting : 0.1 to 999.9 seconds
000 to 1FF (512 points)
U One-shot timer Setting : 0.1 to 999.9 seconds 000 to 0FF (256 points)
C Up/Down count CU : Up count,
CD : Down count,
CR : Reset,
setting : 1 to 9999 counts
000 to 0FF (256 points)
V Edge contact | ↑ | : Rise, | ↓ | : Fall 000 to FFF (4,096 points)
N Nesting coil NM : Master control
NZ : Zone control
0001 to 0FF (256 points)
P Process register For starting a computer program (task) 001 to 080 (128 points)
Z Zed register Z0FE : tracing initiated,
Z0FF : tracing stopped
000 to BFF (32 points)
S System register For displaying the internal CPU status 000 to BFF (3,072 points)
Only for HI-FLOW HH Register in the flow Internal register for HI-FLOW only 000 to 1FF (512 points)
J Transfer register For interlocking from HI-FLOW to ladder diagram 000 to FFF (4,096 points)
Q Receive register For interlocking from ladder diagram to HI-FLOW 000 to FFF (4,096 points)
CN Counter Repeat counter for the control flow 0 to 127 (128 points) *1
WT Weight timer For waiting time for the control flow 0 to 255 (256 points) *1
PT Parallel timer For pulse generation 0 to 255 (256 points) *1
P Process Division unit of the HI-FLOW program 0 to 255 (256 points) *1
B Label (per process) Jumping destination of the control flow 1 to 255 (255 points) *1
A Communication link register For special communication modules 000 to FFF (4,096 points)

Note : The standard remote I/O is from 000 to 7FF (2,048 points). Using 800 or more as input/output requires a J.NET module.

Tragets of word (16-bit) edited data of the arithmetic function : X, Y, R, G, E, K, T, U, C, N, P, Z and S.
Examples : XW000=X000, X001, X002, X003, •••, X00F
                  XW010=X010, X011, X012, X013, •••, X01F
The weight of bits in word (16-bit) edited data of the arithmetic function : The smallest number is the MSB (most significant bit) ; the largest number is the LSB (least significant bit).
                               MSB                                        LSB
Examples : XW000=X000, X001, X002, X003, •••, X00F
Settings for T (timer), U (one-shot), and C (counter) : Assign an S between the symbol category and number.
Example : T012 setting=TS012
Counts for T (timer), U (one-shot), and C (counter) : Assign a C between the symbol category and number.
Example : T012 setting=TC012.
The target symbol for word (16-bit) edited data for T (timer), U (one-shot), and C (counter) : It is a contact.
For the external input/output register (X, Y), the range of a vacant module for the I/O unit will also be reserved. Therefore, be careful to avoid duplicate reservations.
*1
Decimal notation.