Watlow 988 series - Page 55

Temperature/process Controller Prompt Table
986, 987,
988, 989
Data Communications with the Watlow Series 988 Family
6.11
Command Summary Series 986-989, Chapter 6
Name Description Read (?) and/or Write (=) Syntax Range
data.1 data.2
Modbus
address
RL1 Range Low ? <sp> RL1 <cr> min. IN1 range to to max. IN1 range
49 Input 1 = <sp> RL1 <sp> data.2 <cr> Default: Sensor low range
RL2 Range Low ? <sp> RL2 <cr> min. IN2 range to to max. IN2 range
57 Input 2 = <sp> RL2 <sp> data.2 <cr> Default: Sensor low range
RP Ramping Initiation ? <sp> RP <cr> 0 = off
110 = <sp> RP <sp> data.2 <cr> 1 = on startup
2 = on startup and set point change
Default: 0
RSP Remote Set Point ? <sp> RSP <cr> 0 = off
142 = <sp> RSP <sp> data.2 <cr> 1 = on
Default: 0
RATE Ramp Rate ? <sp> RATE <cr> 0 to 9999°/minute
111 = <sp> RATE <sp> data.2 <cr> Default: 100°/minute
RTD1 RTD Calibration ? <sp> RTD1 <cr> 0 = JIS
52 Curve Input 1 = <sp> RTD1 <sp> data.2 <cr> 1 = DIN
Default: 1
RTD2 RTD Calibration ? <sp> RTD2 <cr> 0 = JIS
60 Curve Input 2 = <sp> RTD2 <sp> data.2 <cr> 1 = DIN
Default: 1
SHYS Slidewire ? <sp> SHYS <cr> 0 to HUNT
66 Hysteresis = <sp> SHYS <sp> data.2 <cr>
SIL2 Alarm 2 Silence ? <sp> SIL2 <cr> 0 = off/disabled
77 = <sp> SIL2 <sp> data.2 <cr> 1 = on/enabled
Default: 0
SIL3 Alarm 3 Silence ? <sp> SIL3 <cr> 0 = off/disabled
83 = <sp> SIL3 <sp> data.2 <cr> 1 = on/enabled
Default: 0
SRNB Serial Number ? <sp> SRNB <cr> xxxx = 0000 to 9999
124 Bottom Display
Read the six-digit unit
serial number in two
segments,
"SNxx" and "xxxx,"
i.e., as in the
upper and lower
front panel displays.
SRNT Serial Number ? <sp> SRNT <cr> SNxx = 00 to 99
123 Top Display
SOFT Software Revision ? <sp> SOFT <cr> 0 = Rev A 7 = Rev H 14 = Rev O
141 1 = Rev B 8 = Rev I 15 = Rev P
2 = Rev C 9 = Rev J 16 = Rev Q
3 = Rev D 10 = Rev K 17 = Rev R
4 = Rev E 11 = Rev L 18 = Rev S
5 = Rev F 12 = Rev M 19 = Rev T
6 = Rev G 13 = Rev N 20 = Rev U
etc.
SP1 Set Point 1 ? <sp> SP1 <cr> RL1 to RH1, or
7 = <sp> SP1 <sp> data.2 <cr> if CNTL = 2 (ratio), then 0.0 to 20.0
if CNTL = 3 (differential), then -999 to 999
if ATM = 1, then 0 to 100%
Default: per IN1 and hardware
Table 6.11 -
RL1 to SP1
ç
CAUTION:
Avoid writing <=>
continuously,
such as ramping
set points or
repetitive loops, to
the Series 986-989
EEPROM memory.
Continuous writes
may result in
premature control
failure, system
downtime and
damage to
processes and
equipment.
NOTE:
The number of
decimal places
returned by many
of these
commands is
determined by the
DEC1, DEC2, IN1
or IN2 setting.