Toshiba T2N - Manual (Page 144)

5.RAS Functions
User’s manual 131
(3) Register value validity check function
This function checks that the register value is within the specified
numerical value range. There can be up to a maximum of 4 registers, a
minimum and maximum value is registered for each. Also, it is possible to
select the register value to be taken as an integer (signed) or as a positive
integer (unsigned).
The check is carried out immediately before starting a scan, the results are
stored in the special relay S0143-S0146 (within the range: 0, outside the
range: 1).
The register and the numerical value range are registered in programmer
system diagnosis mode.
XW034 unsigned 0 400 200
XW035 signed -1500 1500 2000
D0011 unsigned H0200 H9000 H1234
W0100 signed -300 600 -1000
comparison
result
registered
register
type minimum maximum present register
value
register 1 (XW034) .... S0143 = 0
register 2 (XW035) .... S0144 = 1
register 3 (D0011) ..... S0145 = 0
register 4 (W0100) .... S0146 = 1