Philips Aleron Series 2-1 Operator's manual

I
SYSTEM 21
QUICK
OPERATING
GUIDE
4822 872 30319
860415
1. INTRODUCTION
I
The aim of this guide is to facilitate getting started with System 21. To explore the
full possibilities of System 21 it is necessary to consult the "System 21 manual",
which contains all the details.
System 21 consists of:
-one master function
-functional units
: performs System
21 control and the communication
(transparent) with functional units.
: perform auxilary tasks such as switching, scanning,
1/0 etc.
SYSTEM 21
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IE EE -488
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CONTROLLER I MASTER I
I FUNCT
IONA L UNITS (SLAVES)
I
SYS TEM 21 BUS
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-------------- _j
ST4701
PHILIPS

CONTENTS
1. INTRODUCTION
2. HOW TO INTERCONNECT THE UNITS
3. ADDRESS SELECTION
4. ADDRESSING A MESSAGE
5. COMMANDS
6. READING DATA FROM SYSTEM 21
7. PROGRAMMING WITH IMMEDIATE EXECUTION
8. PROGRAMMING WITH USE OF PRE-PROGRAMMING AND DIFFERENT
EXECUTION MODES
8.1. PRE-PROGRAMMING
8.2 . LOADING THE BLOCK-MEMORY
8.3. CLEARING THE BLOCK-MEMORY
8.4 . INITIATE COMMANDS
8.5. HOW TO EXECUTE THE PROGRAMMED OR INITIATED FUNCTIONAL
COMMANDS
8. 6. HOW TO PROGRAMME A TRIGGER
8. 7. PM-NUMBER ADDRESSED EXECUTION
8. 8. BLOCK-OPERATION
8.9 . SCAN FUNCTION
9. HOW TO SEE IF UNITS ARE READY WITH THE PROGRAMMED TASKS
10 . HOW TO SEE IF UNITS HAVE DATA AVAILABLE
11. PROGRAMMING FOR THE EXPERTS
12. ANNEX

2. HOW TO INTERCONNECT THE UNITS
by clipping the units on top of
each other
Press here, while moving down
the upper unit with the feet
in the
holes of the lower one.
Then release the button, by wich
the feet hook into the holes.
with cable-set PM2192
by using Rack-mount PM2193
ST4698
How to clip the units together
If more distance between the units is required (.5 m up to maximum 150 m) , only
the data-lines (data high twisted with data low) and the OV- lines may be used, not
the synchronization lines.
3

3. ADDRESS SELECTION
4
IEEE/IEC-bus address of the Master Unit
(selectable addresses are 10 ... 19)
ST4699
Warning: When an
even addresses is set, a
Service Request will occur
after a power-on reset
(not maskable).
Example of a
PM2101 with IEEEIIEC-device address 11 (default address)
Unit address of Functional Units
(consists of 2 fixed, type number dependent, and a third variable digit)
20
ST4700
Example of a PM2120 with unit address 203.

4. ADDRESSING A MESSAGE
Any message to System 21 is of course preceded by the IEEE/IEC address set on
the master unit.
Example:
IEC PRINT #11,"message"
or
OUTPUT 711; "message"
using P2000C
using HP85
sends the "message" to System 21 with IEEE/IEC address 11.
The routing of this message (to the master or to one of the slave units) is indicated
by the first element of the message, the "unit address".
This unit address is:
"AID" for the master (Additional Instrumentation Devices).
"AID" +3digits for the slave units.
These 3 digits consist of the last two digits of the type number of the unit + 1 digit
set on the unit address switch.
Separation between unit address and the following commands is ";" or
", ". If more
than one command is sent in one string, the individual commands have to be
separated by commas.
Examples:
Message Description
"AID;command" routes a "
command" to the master routes the two
''AID203;command,command'' commands to the unit PM2120 with address switch
set to 3
5

5. COMMANDS
Commands are given in ASCII-coded form. There are two types of commands:
1. Commands for the total System 21 that have to be routed to the master unit.
2. Commands for individual units that must be routed to the specific unit.
A full survey of these command codes can be found
in the annex (for master
commands and slave commands valid for all slaves) and in the operating cards of
the individual units (for specific unit dependent commands).
Examples:
Message Description
"AID;RESET" is a message to the master (AID) with the command
(RESET) to reset the system to the power-on conditions.
"AI0201;CLOSE2,0PEN4" is a message to the slave PM2120 with address setting 1
(AID201) with the commands to close switch 2 and to
open switch 4.
6. READING DATA FROM SYSTEM 21
To input data from System 21, first a command message requesting for this data has
to be sent and after that the system has
to be addressed as talker to read the data.
Example:
6
on P2000C on HP85
100 IEC PRINT #11,"AID311;1NP H"
100 OUTPUT 711;"AID311;1NP H"
110 IEC INPUT #11,R$
110 ENTER 711;R$
The first message is a request to the PM2131 with address switch set to 1 to send
the data, which is
on the input lines. With the second statement the data are read
from the system.
Note: An input statement always returns the result
of the last request for data.
Earlier sent requests are automatically cancelled.

7. PROGRAMMING WITH IMMEDIATE EXECUTION
In the default position after power-on, System 21 executes incoming commands
immediately in the order in which they are programmed. This is the most simple
and straightforward way of programming, involving a limited number of commands,
of which the most important are given below.
Function Message Description
System Reset "AID;RES" Resets the total System
21 to the
power-on conditions.
Unit Reset "AIDnnn;
RO " Resets slave with unit address "nnn"
to the power-on conditions.
Operating Mode "AIDnnn;Mm" Sets slave with address
"nnn" in
operating mode "Mm" (see operating
cards
of the units).
Functional Command "AIDnnn;cmd,
.. ,cmd" Sends the commands
"cmd" to the
unit with address
"nnn ".
Remarks:
1. The codes for the functional commands are unit dependent and can be found
on the operating cards of the units.
2. After a command requesting for the return of data, System
21 must be
addressed as talker to input the data into the controller.
3. A power-on system reset can also be realised
by pushing the RESET button
on the master unit (not allowed during a running program).
7

8. PROGRAMMING WITH USE OF PRE-PROGRAMMING AND
DIFFERENT EXECUTION MODES
8.1. PRE-PROGRAMMING
Each slave unit has a block-memory in which functional commands (that have to be
used repetitively) can
be pre-loaded. This block-memory has 20 memory positions,
each of which can contain up
to a full slave setting. The commands stored, can be
recalled from the memory positions serially or randomly by using INITIATE
commands (see 8.4.).
8.2. LOADING THE BLOCK-MEMORY
The block-memory is loaded by sending the commands to be stored, preceded by
"Pn" indicating the memory position at which the data have to be stored.
Examples:
"AID201;P3,CLOSE
O,OPEN 5" functional commands "CLOSE O,OPEN
5" are stored in block-memory position
3 (P3).
"AID201;PO,CLOSE 0-9;P1,0PEN
10-19 " "CLOSE 0-9" is stored in block-memory
position 0
(PO), "OPEN 10-19 " in
block-memory position 1 (P1).
8.3. CLEARING THE BLOCK-MEMORY
The block-memory is automatically cleared at reset or at a mode change of the unit.
It also can be cleared by sending "AIDnnn;R2". Individual positions of the block-
memory can be cleared by sending 'empty' commands ("Pn" not followed by
commands).
Examples:
8
"AID218;P10"
"AID218;P10-15"
"AID218;R2"
clears block-memory position 10.
clears block-memory positions 10 up to incl. 15.
clears the total block-memory with
general slave command "R2".

8-4. INITIATE COMMANDS
With initiate commands, it is possible to recall the functional commands from the
block-memory. There are two possibilities:
Random recall: One can recall (initiate) any block-memory position. This is done
by
"I n" where n ( =0 .. . 19) is the memory position to be initiated.
Serial recall: This is used with "Block Operation". For a description with
example see 8.8.
Example of a random recall at unit address 213:
"AID213;1 2"
Block-memory position 2 is initiated.
The initiating of commands from the block-memory is comparable with direct
programming. It does not automatically conclude that these commands are also
executed. Execution only follows when execution conditions are met (see next part).
8.5- HOW TO EXECUTE THE PROGRAMMED OR INITIATED
FUNCTIONAL COMMANDS
In the default position of the system, the execution of commands sent to the slaves
is immediately after receipt of the individual commands. This is the "Execute
Unconditional" mode.
To enable synchronisation of actions within a slave or
between different slaves, two further execution modes are available:
-"Execute on X" where programmed or initiated commands are simultaneously
executed on the first following character "X" received by the slave.
"Execute on Trigger" where programmed
or initiated commands are executed on
next trigger-impulse
on the System 21 internal trigger line (see 8.6).
These execution modes of the individual slaves can be programmed by the
following commands (example with unit address 312) :
Command Description
" AID312 ; E~U " Execute Unconditional mode
" AID312;E~X " Execute on command "X" mode
" AID312 ; E~T " Execute on Trigger mode (see 8.6)
9

8.6. HOW TO PROGRAMME A TRIGGER
(impulse on the trigger-line of the System
21 bus)
This can be done with
System 21 master command " AID;XCU~T "
or IEEE-bus command GET (Group Execute Trigger)
Examples:
Using on P2000C on HP85
master command
IEC PRINT #11 , "AID ; XCU~T " OUTPUT 711 ; " AID ; XCU~T "
IEEE command GET IEC TRIGGER # 11
TRIGGER 711
8.7. PM-NUMBER ADDRESSED EXECUTION
When only a group of identical units have to receive an execute command this can
be done by the command "AID;XCU nn" addressed to the master (see also 8.9.
"Scan Function"). "nn" stands for the last two digits of the slaves type number. This
execution command
is independent of execution mode setting.
Example:
"AID;
XCU 20" All PM 2120 units will execute their received commands (also initiate
commands), independent
on the execution modes selected.
8.8. BLOCK OPERATION
10
Block operation is the sequential execution of functional commands stored on
successive positions
at the block-memory, always starting with position 0 (serial
recall from memory; see also
8.4). Block operation is initiated by command "AIDnnn;
I~B [,n)". The section enclosed within ( ] is optional. "n" represents an integer
value 0 .......... 19 indicating the last block-memory position to be executed. Omitting
the value "n", the default value will be
19. After that, execution can be performed
step by step by giving
"X" or a trigger command, depending on the execution mode
selected, or a PM-number addressed execution command (see 8.7.). The Execute
Unconditional mode is not allowed for block operation. "Block operation, once
initiated, may only be followed by execution commands or request commands
(commands with
"?") . All other commands will cancel block operation.

Example with unit address 200:
" AID200;E._)( , I~B , 5,X "
"AID200;X"
8.9. SCAN FUNCTION
Execute on "X" mode, initiate block operation and execute
the first, block-memory position.
Execution of second position
etc. up to and including block
position 5.
(Available only in some slave units)
The scan function is used for the sequential select of inputs, switches, channels. A
scan-cycle can be executed over channels of several units on the condition that:
All units are of the same PM-number.
All units are set for the same operating mode (see the System 21 manual and
the operating cards of the slave units).
No unit is
in Execute Unconditional mode (see 8.5) .
The units have
successive-addres.~s - with settings starting at 0.
The scan is initiated by the command "AID nnn;l s ;; ,' ~h~te ' rtnn r , ep~e.sents the
slave address. The execution is done with a number of execute commands or
triggers equal
to the number of channels to be scanned. Under the above
conditions a scan cycle will start with the lowest channel number of the unit with
address-switch set
to zero and continue along all channels and units. A scan, once
initiated, may not
be followed by other than execution commands. All other
commands will cancel the scan.
Example:
" AID200;E._)( , I~S "
"AID201;E._)(,I~S"
" AID202 ; E._)(,I~S "
Repetitively:
"AID
;X CU 20"
Initiate a scan on PM2120 units with
addresses 200,
201 and 202.
Execute to all PM2120 units. The scan starts with
lowest channel of unit 200, and steps along all
channels with the successive execute commands.
11

9. HOW TO SEE IF UNITS ARE READY WITH THE PROGRAMMED TASKS
Default, the slaves pull the ready-line low as long as the programmed actions are
not finished. However each slave can be disabled to pull the ready-line
low.
Command Description
"AID213;R~E" ready-line control enable (default): unit 213 will pull
the ready-line low when not ready.
"AID213;R~D"
ready-line control disable: unit 213 will never pull
the ready-line low (keeps ready passive true).
The state of the ready-line can be read by the master command "AID;
ROY ?".
Addressing System 21 as talker will give as response:
"AID;RDY 0"
"AID;RDY 1"
ready-line is low: the unit(s) are not ready.
ready-line is high: the unit(s) are ready.
If more than one slave controls the rea.4-~ trnor user can appry a status request to
the different slaves..wtttr'1tf!Jnnn;S ?" to see which ones are ready and which ones
are not ready·fsee System
21 manual).
10. HOW TO SEE IF UNITS HAVE DATA AVAILABLE
The most appropriate way to check for data availability at a unit is by the following
command:
Command Description
"AIDnnn;S ?" ask for the status of unit with address "nnn".
12
The response is "AIDnnn;S "+ < 9 digits >, where digit number 5 represents data
availability (see System
21 manual).

11. PROGRAMMING FOR THE EXPERTS
System 21 offers an extensive range of further facilities such as:
Service Request for several reasons, which can be masked separately
Identification of System
21 master and slave units
Configuration request
to see which unit addresses are present
Status information of the master as well the slaves such as:
• power fail
• address not present
• unit busy
• end of block or scan
• warning flags of slave units
• selected modes
• data available
Test routines
A description of the use of above facilities is beyond the scope of this quick
operating guide.
To explore all these possibilities of System 21 , a more detailed
study of the System
21 manual is required.
13

12. ANNEX
0
0
•
0
•
•
•
14
A summary of commands with descriptions is given below. The headings indicate
the functions
to which the commands are related. The left column gives the
command level
to which each command is applicable. In the following statements
given for P2000C and HP85, the commands shall be filled
in in the place of "cmd"
except for the Group Execute Trigger and the Serial Poll commands where the
complete statements are given, because of the different command structure.
Defaults are given where applicable. The last column gives the section number
where the function is mentioned or handled
in this Quick Operating·Guide. Where
"Sys.M" is mentioned, it is referred to the System 21 manual; where "Op.Crd" is
mentioned, it is referred
to the Operating Card of the slave. Where "~" is given in
the command syntax, a space-character is necessary for command recognition.
Where a space
is given (for readability), it is optional.
Default addresses
IEEE/IEC address of PM2101 11
Address switch in position 1.
Unit address of slaves
Command level
IEEE/IEC-interface
Master
Slave
Function I Command
Reset
"RES"
" RO"
"R1"
"R2"
nnO Address switch in position 0. nn
are the last 2 digits of PM-number.
Statement
on P2000C Statement on HP85
IEC PRINT #11,"cmd" OUTPUT 711;"cmd"
IEC PRINT #11,"AID;cmd" OUTPUT 711;"AID;cmd"
IEC PRINt #11,"AIDnnn;cmd" OUTPUT
711; "AIDnnn;cmd"
Description Default See
Sys.M
RESet the complete System 7
to the power-on conditions.
Reset unit
as after power-on 7
Reset unit
as after mode change.
Clear the block memory 8.3
of the unit.

Function I Command Description Default See
Operating mode
•
"Mn"
Select operating mode n. 7
Functional command (slave command)
• "CLOSE
1"
Example of a functional 7
command. These commands are
unit specific and are only handled
in the operating cards of the
different slave units.
Pre-programming
8.1
• "Pn, cmd,..., cmd" Functional commands
8.2
"cmd,...., cmd" are stored on
memory position n (n=0 ... 19).
Block-memory clear memory 8.3
cleared
•
"Pn"
Clears memory position n.
• "Pn-m" Clears memory position n up
to 8.3
including m, where
O<=n<m<=19 .
•
"R2"
Clears all memory positions. 8.3
Initiating 8.1
•
"In"
Initiate block-memory position n
8.4
• "I
~B [,n]" Initiate block operation, up
to and
8.4/
including memory position n. 8.8
•
"I~S"
Initiate a scan (see "scan
8.9
function).
Set trigger mode Sys.M
0
" TRG~R " TRiGger if Ready mode: enable Sys.M
the trigger-commands GET and
"XCU T" only when the ready-
line is true or delay the received
trigger command until the ready-
line becomes true.
0 "TRG~U"
TRiGger Unconditional mode: "TRG R"
Sys.M
the trigger-commands GET and
" XCU T" will unconditionally gene-
rate an impulse on the trigger-line.
15

Function I Command
Description
Default See
Set execution mode 8.5
•
"E~U"
Execute Unconditional mode.
"E U" 8.5
This mode is not allowed for
block and scan operations.
• "
E._)("
Execute on command "X" mode.
8.5 .
•
"E~T"
Execute on trigger mode (low
8.5
impulse on the trigger-line).
Trigger and execute commands
8.5
•
"X"
eXecute (if in " E X" mode).
8.5
0 IEC TRIGGER #
11
J Statements for P2000C and HP85 8.6
0 TRIGGER
711
to generate a GET (Group Exe- 8.6
cute Trigger). Generates a pulse
on the System 21 trigger-line if
enabled (see "Set trigger mode" ).
0
" XCU~T "
eXeCUte the units by a pulse on 8
.6
the System 21 trigger-line if
enabled (see "Set trigger mode").
0 "XCU
nn"
eXeCUte all units with "PM21nn"
8.7
numbers independent on the
execution mode of the units. This
command is useful when using
"I ~S " commands to perform a
scan by more than one unit of the
same type number.
Block operation 8.8
•
" 1~8 [,n]"
Initiate block operation, up to
8.8
and including memory position n.
This command is to be followed
by a repetitive execute command.
Each execute command executes
the present block-memory
position and initiates a next o ne .
The Execute Unconditional mode
" E~U " is not allowed here.
16

Function I Command Description Default See
Scanning 8.9
•
" I~S "
Initiates a scan. This command is 8.9
to be followed by a repetitive
execute command.
On each exe-
cute command the next channel,
switch or I/O-line is selected. The
Execute Unconditional mode
" E~U " is not allowed here.
Request f
un ctional data Sys.M
• "?" Request for functional data. The 61
kind of data is determined by the Op.Crd
previous command. In many
cases the
"? " is optiona l.
Setting separators PM2101
D "SPA
n[,m]" n and m (optional) are the "SPR 10 " PM2101
decimal values of the !SO-codes =
LF
to be the record separator. n and
m < 32 and #
27 (ESC).
D "BSP n" n is the decimal value of the
ISO - "BSP 10 " PM2101
code to be the block separator. =
LF
n < 32 and # 27 (ESC).
Request Identity data Sys.M
D "
ID ?"
Identity of PM2101+HW and SW
" PM2101 .S .. "
PM2101
rei.
• "
I? " Identity
of slave +HW and SW rei.
" PM21 ... S.." Op.Crd
Request Configuration Sys.M
D "AID
?"
Which unit addresses are present? Sys.M
Request Status
D
IEC POLL # 11 ,S ] See "Serial Poll ".
PM2101
D S=SPOLL
(711)
PM2101
0 "
STA ?" Status data of System
21 ? Sys.M
• "S ?" Status data of slave ? Op.Crd
Test
D
" TSI~U "
Test IEEE/IEC-interface.
PM2101
D "
TSI "+CHR$(1- 70)
Test IEEE/IEC-interface.
PM2101
• "T n" Perform test
n.
17

Function I Command Description Default
See
Service Request masking
D "MSR
n"
Mask Service Request with "MSR
0" PM2101
decimal value n= 0.... 511
Mask-values: values may be added to enable
more conditions to generate SRQ.
decimal enable Service Request when:
value
256
PM2101 is no longer BUSY
128
A System 21 event occurred
16
PM2101 received an illegal code
0
"MSK"+ <digits>
Mask System 21 events
"MSK 0"
Sys.M
(maximum 9 digits). A zero digit
disables the corresponding event
to generate a Service Request.
digits: "1" A slave had a power fail,
"0 "
received a power-on reset or
received
an illegal code or illegal
sequence.
" 2" An addressed module is not
present.
"0"
"3"
All units became ready
performing the programmed
"0"
actions.
''4'' All units are ready with the
"0"
received data and may receive
new data.
"5"
A unit has data available. "0"
"6"
All units are ready with the "
0"
block or scan.
"7" A unit has a warning.
"0"
"8" The ready-line became high
(ready true) "0"
"9" A trigger-pulse was captured
on
"0"
the trigger-line.
18

Function I Command Description Default See
Serial
Poll
PM2101
D IEC POLL #11 ,S Statement to perform Serial Poll PM2101
on P2000C; status byte returned
inS .
D S=SPOLL
(711) Statement to perform Serial Poll
PM2101
on HP85; status byte returned
inS.
Ready-line control/read
~ 9
•
" R~D "
Ready-line control disable. 9
•
" R~E " Ready-line control enable. "R E" 9
0 "
ROY? " Logic state
of the ready-line ? " ROY 1" 9
Sequential execution
Sys .M
0
" SEQ~ON " Sequential execution. "SEQ ON " Sys.M
0
" SEQ~OFF " Parallel execution possible. Sys.M
Request settings I modes
Sys .M
• "M ?" Actual operating mode
of slave ?
0 "
TAG? " Trigger mode of master ? "
TRG R"
• "E
?"
Execution mode of slave ? "E U"
• "R ?" Ready-line control mode ? "R E"
0 "MSK ?" System 21 event mask ? "MSK 000000000"
0 "
SEQ? " SEQuential execution mode ? "
SEQ ON "
0 "DMP ?" Dump data
of master ? "MSK 000000000,
TAG R,SEQ ON "
• "D ?" Dump data of slave ? "M
., E U, R E"+
<functional settings>
Additional requests; warning: slow responses
0 "BBS
?"
Which unit addresses are Busy Sys.M
with a Block or a Scan ?
0 "
DAV ?" Which unit addresses have
DAta
10
Available?
19

D
0
•
DATA- AND STATUS-REQUEST COMMANDS WITH RESPONSES
A summary of all request commands for output- and status-data with the
corresponding responses is given below. The left column gives the command level
to which each command is applicable. In the followi ng statements given fo r P2000C
and HP85, the commands shall be filled in in the place of "cmd". The request
command shall
be followed by an INPUT/ENTER command to read the requested
data. All responses, mentioned
in the summary, from the master are preceded by
"AID;", those from the slaves are preceded by "AID nnn;".
Command level Statement on P2000C Statement on HP85
IEEEIIEC-interface IEC PRINT # 11 ,'' cmd" OUTPUT
711 ,'' cmd"
Master
IEC PRINT # 11 ,'' AID;cmd" OUTPUT
711 ,'' AID;cmd"
Slave IEC PRINT #
11 ,''AIDnnn;cmd" OUTPUT 711 ,'' A1Dnnn ;cmd"
I "nnn" represents the unit address of the addressed slave
Requested data Command data Description
Response data
• Functional data "?" Request for functional data.
Response: <slave data> These data are specified
in the
operating cards of the units.
0 Data available "
DAV ?" Request for the unit addresses
which have DAta Available.
Response: " DAV " + < addresses> List of addresses of all units which
Example: "DAV 310 , 311 , 312 ,'' have data available.
Warning: The master will poll all
PM-numbers, which may take a
few seconds maximum.
0 Ready-line "ROY?" Logic state of the ready-line ?
Response: "
ROY 0" if ready-line is low (ready false)
"ROY 1" if ready-line is high (ready true).
0 Busy Block or Scan "BBS ?" Which units are Busy with
a Block or a Scan ?
Response: "BBS" + < addresses> List of all units which are Busy
Example: "BBS
210 , 211 , 212 ,'' with a Block or a Scan.
20