Applies To:
  • CitectSCADA 1.00 1.01 1.10 1.11 1.20 2.00 2.01 3.00

How do I connect to a TOSHIBA PLC? 

The serial drivers PCxI, MCxI, COMxI or COMx may be used. Setup the PLC with the appropriate communication parameters i.e. baud rate, parity, protocol and station number.
I/O Devices form
Name: User supplied unique name
Number: Network wide I/O device number
Address: 0 to 31
Protocol: TOSHIBA for the base model
TOSHIBA100 for EX100
TOSHIBA250 for EX250
TOSHIBA500 for EX500
TOSHIBA2000 for EX2000
Port name: Use the "Port name" from the Ports form

Standard citect.ini options

MaxPending = 2
Block = 32 bytes
Retry = 0
Delay = 0
TimeOut = 2000 milliseconds
PollTime = 0
WatchTime = 30 seconds


  • TOSHIBA.DLL - The TOSHIBA driver for windows
  • TOSHIBA.DBF - The TOSHIBA variable template
  • TOSHIBA0.DBF - The TOSHIBA variable template for base model

TOSHIBA Variables

Xwb External Input device
Ywb External Output device
Rwb Auxiliary relay device
Zwb Link device
XWw External input register
YWw External output register
RWw Auxiliary relay register
ZWw Link register
Dw Data register
Tw Timer register
Cw Counter register
Where w is the word number starting from 0
b is the bit number 0-f