How to Use Data Communications
8
WATLOW Series 945
Parameters
Setup Menu - Communications Parameters
Enter the Setup menu by pressing the UP/DOWN keys simultaneously for 3
seconds. The lower display shows the LOC parameter, and the upper display
shows its current level. All keys are inactive until you release both keys. You can
reach the LOC parameter from anywhere. This is only a listing and brief explana-
tion of the parameters, refer to Pages 22 through 26 for a thorough explanation of
Statistical Process Control (SPC).
Baud: Represents the current baud rate for serial communications.
Range: 300, 600, 1200, 2400, 4800, 9600
Default: 1200
Data: Allows the user to select the data bits and parity for communication.
Range: 7 o = 7 data bits and odd parity
7E = 7 data bits and even parity
8 n = 8 data bits and no parity
Default: 7 o
Protocol: Selects the communication protocol. Must be On for data logging to
occur. FULL = ANSI X3.28 2.2 - A.3 On = XON - XOFF
Range: FULL or On
Default: FULL
Address: Selects the address device if Prot = FULL. Range: 0 to 31 Default: 0
Log: Selects the data logging function for a printout of the data. Appears if Prot =
On. For further expon on SPC, the parameters and printouts, see Page 22 - 26.
Range: OFF, tAbL, CHrt, SPCA, SPCd, SPCn Default: OFF
Lower Specification Limit: This value is the specified deviation below set point,
which statistically the process should not exceed. Appears if Prot = On and Log =
SPCA or SPCd. SPCA Range: rL to Lower USL -2
°
F/-1
°
C
Default: rL
SPCd Range: 1 to 99
Default: 10
Upper Specification Limit: This value is the specified deviation above set point,
which statistically the process should not exceed. Appears if Prot = On and Log =
SPCA or SPCd. SPCA Range: rH to upper LSL +2
°
F/1
°
C Default: rL
SPCd Range: 1 to 99
Default: 10
Time Base: Selects the time in minutes over which 30 random samples are taken
for computing SPC values. Appears if Prot = On and Log = SPCA or SPCd.
Range: 1 to 60
Default: 5
Line: Selects the number of lines per page of data logged output. Match this
parameter to the number of lines per page your printer prints. After you select the
number of lines to print, a form feed character is sent to the printer, resetting the
top of the page. Range: 10 to 127 Default: 65
Year: Select the current year for the data logging header. Appears if Prot = On
and Log = tAbL, CHrt or SPCA, SPCd, SPCn. Parameter resets to default after a
power interruption. Default: 92
Month: Select the current month for the data logging header. Appears if Prot =
On and Log = tAbL, CHrt or SPCA, SPCd, SPCn. Parameter resets to default after
a power interruption. Default: 01
Day: Select the current day for the data logging header. Appears if Prot = On and
Log = tAbL, CHrt or SPCA, SPCd, SPCn. Parameter resets to default after a
power interruption. Default: 01
Hour: Represents the 24 hour time-of-day clock setting for minutes. Appears if
Prot = On and Log = tAbL, CHrt or SPCA, SPCd, SPCn. Parameter resets to
default after a power interruption. Range: 0 to 23
Default: 0
HOUr
dAY
Mon
YEAr
LinE
tbS
USL
LSL
Log
Addr
Prot
dAtA
bAUd
