Lake Shore Model 620/622/623/647 Magnet Power Supply User’s ManualOptions & Accessories6-12PSHS? PSH Summary QueryInput: PSHS?Returned: [PSH][PSH status][PSH compliance][current value][command status] where:[PSH] = 0 if PSH is present, or 1 if PSH is not present,[PSH heater status] = 0 if heater is OFF, or 1 if it is ON,[PSH compliance] = 0 if PSH is under compliance or 1 if it is over.[current value] = up to three characters which give the current value[command status] = 0 if the command status is OFF, or 1 if it is ON.Remarks: Returns seven characters plus up to two terminators.PSHCH Program PSH Channel (Multiplex PSH Card ONLY)Input: PSHCH [channel], where [channel] = 0 to 8Returned: Nothing.Remarks: Command applies to the Model 6228-8MUX Card ONLY. 0 = heater OFF; 1 to 8 = heater ON.PSHCH? PSH Channel Query (Multiplex PSH Card ONLY)Input: PSHCH?Returned: Channel number from 0 to 8Remarks: Command applies to the Model 6228-8MUX Card ONLY. 0 = heater OFF; 1 to 8 = heater ON.Returns one character plus up to two terminators.6.4 MODEL 6228-2 PERSISTENT SWITCH HEATER OUTPUTThe Model 6228-2 Persistent Switch Heater Output Option controls a second Persistent Switch. The outputhas the same specifications as the 6228 card.The PSH SETUP screen using a 6228 and a 6228-2 card appears to the right. Only the heater currents can bechanged on this screen. The status of the heater is either on or off. The last value is the current of the powersupply when the heater was last turned off.The PSH SETUP screen using a 6228-8MUX and a6228-2 card appears to the right. Note that theChannel displays for the 6228-8MUX card. Theheater currents and channel of the 6228-8MUX canbe changed on this screen. The status of the heateris either on or off. The last value LAST 1 is thecurrent of the power supply when the heater waslast turned off for the given channel of the 6228-8MUX.The PSH SETUP screen using ONLY a 6228-2 cardappears to the right. 3 3 3 3 # # # 2 @ 3 2 @ 3 3 # 2 @ 3 3 # # #
