Philips PM 5191 Operating Manual page 74

E 3-20
In line 149 A$ picks up the command for the PM 5191. In the following lines 145, 15@ and 155 the
program: checks on whether this command is 'IS?' for the learn mode, '1D?' for the identification of
the device, or '//' to switch back to local. If one of the two strings 'ID?' and 'IS?' is keyed in, the output
of the command is followed immediately by taking in the string BS with the consequent output on the
VDU (lines 175 and 180). In case of an error the status byte is output using the service request (SRQ);
bits @, 1, 2, 5 and 6 were activated in line 7@ using command 'MSR 193'. If an SRO occurs, the program
branches out at line 22@ and carries out a serial poll there; the decimal value of the entered status
byte is displayed as the variable 'S' in line 225.
If the PM 5191 is controlled by the P 2000 C via the IEEE interface, it should be taken into account
that the respond time of the PM 5191 at the JEC bus is considerably slower than that of the P 2000 C.
It is for this reason that line 16@ calls up a short waiting loop using GOSUB 259 after the command
(string A$) has been sent to the PM 5191. If an error occurs, then SRQ can be received before the next
INPUT is started in line 140.
2. Programming example using an HP 85 computer
This example shows a possibility of controlling the PM 5191 via the IEC/IEEE bus using an HP 85. With
this program all commands can be sent to the instrument, strings accepted and error messages (= status
byte) received after a SRQ.
m@ OI A¢Cf0I device address = 5
@ OI1M BSs£3H9
aq Ges"
REMOTE Fas
LOCAL LOCKOUT Ff
NUTFUT 745 a "MSR 163"
CH TIMEGQUT F GOSUB Se
SET TIMEQUT 73186
OW LHTR - GOSUB fhe
CONTROL F.i 3 8
FE hi
REM --------------
REM
QOISPe "COMMAND ="
INPUT ASF
IF Ags""-" THEN 226
CUTFUT FBS «AF
ENTER FMS
ES
B
OISP oF
Reo"
GOTO i46
LOCAL Yas
STOP
GOTO 148
RE
FEM ------------ oreo
REM
CONTROL Ff.
S=SPOLL« 7b
OiSP "IHPUT ERROR }| ? § S="55
COWMTROL 7.4 3
RETURN
RE
REM --------- ore ror
RETURN
END
ied
ne
a)!
Ot fe ai Pe
'St
Wi cyt
dT LS fe Gd he ee OL co AO eed es
a ate ap ace ASST ate Ee Tee cs ee Pes ee Ss ee a Se Ge ee
am, ant
17) CT) fe Od ee = Or
Don OC wr
Cod Od tad tad Kab td Cod Gd De ho Pea fe fea Prd oa Pd [ed fa ee ee ee et ee Rt et
ee ae)