YME Engineering Course

G. PROCESS INPUT/OUTPUTS
♦ Service Comment
The service comment is set with IOM Builder. Nothing is set by default. A
string of up to 40 alphanumeric characters or 20 double-byte characters
can be entered. The setting of the service comment may be omitted.
♦ High/Low range and Unit
The lower and upper limit values of the measurement range of the
terminal is set with IOM Builder. The values that can be selected as the
lower and upper limits of the range vary depending on the I/O module
type, signal conversion type, and terminal position. For AAI835 type the
low and high limits are fixed at 4 and 20 mA respectively.
♦ Set details
The details setting of the I/O module are carried out in IOM Builder. The
items that can be selected vary depending on the I/O module type. For
AAI835, the output points can have either direct or reverse setting. If direct
is set, when the output reads 0% the current output to the valve would be
4mA and 100% implies 20mA. If reverse is set, when the output reads 0%
the current output to the valve is 20mA and 100% implies 4mA.
♦ P&ID tag name
Nothing is set by default. A string of up to 16 alphanumeric characters or 8
double-byte characters can be entered. The setting of the P&ID tag name
may be omitted.
♦ Label
The user-defined label can be set for terminals. Nothing is set by default.
This can be used in the control drawings instead of system defined
terminal names, which would difficult to remember. Up to 16 byte
alphanumeric characters can be entered. The setting of the user-defined
label may be omitted and in such case the terminal name should be used
in the control drawing.
The following shows the specification format of the user-defined label:
%%Mnnnn
%%: Unique to the system
M: The third character must be an uppercase character (A through Z).
nnnn: The forth and subsequent characters must be within 13 characters
in a combination of uppercase and lowercase alphanumeric characters (A
through Z, a through z, and 0 though 9).
YME Training Center
G-13
CS3KR3-ENG 1 ST Edition Jan 2002