Lake Shore Model 218 Temperature Monitor User’s Manual
Remote Operation
6-29
RDGST?
Query
Input
Status
Input: RDGST?
<input>
Returned: <reading bit weighting>
. Format:
nnn[term]
.
Remarks:
The integer returned represents the sum of the bit weighting of the input status flag bits.
<input>
specifies which input to query.
Bit
Bit Weighting
Status Indicator
Bit
Bit Weighting
Status Indicator
4
16
temp under range
6
64
units under range
5
32
temp over range
7
128
units over range
RELAY
Configure Relay Control Parameters
Input:
RELAY <relay number>, <mode>, <input alarm>, <alarm type>
Returned:
Nothing.
Remarks:
Configures relay control.
<relay number>
Specifies which relay to configure (
1
-
8
).
<mode>
Specifies relay mode.
0
= Off,
1
= On,
2
= Alarms
<input alarm>
Specifies which input alarm activates the relay when the relay is in alarm
mode (
1
-
8
).
<alarm type>
Specifies the input alarm type that activates the relay when the relay is in
alarm mode.
0
= Low alarm,
1
= High Alarm,
2
= Both Alarms.
Examples: RELAY 3, 2, 3, 0[term] -
Relay
3
activates when Input
3
low alarm activates.
RELAY?
Query Relay Control Parameters
Input: RELAY?
<relay
number>
Returned: <mode>, <input>, <alarm type>
.
Remarks:
Returns relay control parameters. See the
RELAY
command for returned parameter
descriptions.
<relay number>
specifies which relay to query.
RELAYST?
Query
Relay
Status
Input: RELAYST?
Returned: <relay status bit weighting>
. Format:
nnn[term]
Remarks:
The integer returned represents the sum of the bit weighting of the relay status.
Bit
Bit Weighting Active Relay
0 1 Relay
1
1 2 Relay
2
2 4 Relay
3
3 8 Relay
4
4
16
Relay
5
5
32
Relay
6
6
64
Relay
7
7
128
Relay
8
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