Siemens SIMATIC S5 User manual

Operating Instructions
Programming Unit
631

Contents
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Application
Controls
Connections
Principle of operation
Calling up program sections
Search run
Overwriting statements
Inserting statements
Erasing statements
Inserting networks
Erasing networks
Examples for corrections in
LAD
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,, \ Printing out the program
1, .l
,,
Printing out the cross reference list
Printing out the screen contents
Direct signal status display
Program dependent signal status display
Forcing of Outputs, flags and timers
Cross reference for single operands
Clearing the PU-memory
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Transfer contents of PC-memory into PU-memory
Transfer contents of EPROM-module into PU-memory
Transfer contents of PU-memory into EPROM-module
Compare contents of PU-memory with contents
of EPROM-module
( ') TEST EPROM-module for complete erasure
'.-J'
Meaning of the function keys
3

General
Application
The programming unit 631 is used for compilin
and testing STEP-5 user-programs for the
SIMATIC-S5 programmable controllers 55-010,
-1lOA and -130 A/K.
The PU 631 permits programs to be written in
either statement list (STL) or ladder diagram
(LAD) formats of representation.
Using a printer, the statement list,
the ladder diagram and the cross reference
list may be printed out.
The built-in EPROM-programming unit enables
programs to be stored on EPROM-modules.

Controls

Subdivision of VDU-screen
Function field: The chosen function
is displayed, e.g. "41-PROG STL"
(Programming in statement list format)
PC-field: Displays the
PC type chosen
and the operating mode of the
PU631
with the PC, e.g. "PC-11OA WITH PU-MEM"
NW-field: Displays the current network
number.
ADR-field: Displays the address of the
statement in input field (hexadecimal
and decimal)
Input field: The input field is sub-
divided into individual areas.
All
inputs are initially displayed here
and may
be overwritten at random,
until the transfer key
is
pressed.
Message field
1 and 2: Display of
messages and acknowledgements.
Output field: Display of the program
as statement list or as ladder
diagram.
Message
field
2
ADR - field
NW - field
PC - field
l Output field
Message field 1
1 Function field
Input field

Keyboard
Keys for selecting and
executing the functions
of the programming unit:
Changing
a function or
discontinuing the
current function
Search run
Transfer key
Erasing the input field
m
Signal status indication
Ending an input or
a correction and
changeover to output
Begin
a correction
Inserting a statement
B Erasing a statement
Begin inputting or begin
inserting
a network
Erasing a Network

Keyboard
Positioning keys:
Keys for inputting the program
: end of program
Select start of program
. next network
Select previous network
. next statement
Select previous statement
STL
LAD
\
Logic AND Contact connnected
in series
Logic
OR Single parallel
contact
Scan for Identifies normally
"Zero" closed contacts
OR operation Mark to denote the
of
AND
termination of a
functions parallel branch
W operation Beginning of a
,
j. '
of bracketed parallel branch
expressions:
"A("

STL LAD
Close bracket Termination of
prallel branches
Assignment ~elay/contactor
(coil)
Set Energize and
latch relay/
contactor
Reset Deenergize and
latch relay/
contactor
Load
Set time as pulse
;~;~:ime as extended
P
Count down
1 End of network
End module
conditional
l
End module

The numeral keys are used
to input parameters and addresses,
as well as to select the functions
via screen forms (menus).
Operand identifier
for input
Operand identifier
for output
Operand identifier
for flag
Operand identifier
for timer
Operand identifier
for counter
Operand identifier
for peripherals
Operand identifier
for byte
(only in conjunction
with
P, Q or F)

Connections
The mains connection and the mains
switch are located
at the rear of
the unit.
The connection to the PC, the printer
connection and the receptacle for the
EPROM-module are located on top
of the
PU 631 under a cover.
Heceptacle for EPROM-module
PC-interface
Printer connection

Principleof operation
The PU 631 is equipped with a program
memory (PU-memory) with a capacity of
4K
statements. The built-in backup battery
retains the program for a period of 30
minutes after the PU has been switched'
off. In the on-line mode of operation a
PC S5-130 may work either with
its own
EPROM-memory or with the PU-memory.
The PC ~5-110~/010 can only work with
the PU-memory in the on-line mode.
To prevent malfunctions of the controller
during on-line operation (PC with PU-memory)
only complete networks (or basic software
modules in the case of STL) may be trans-
ferred to the PU-memory during program in-
putting or alteration. This
is achieved
in the PU 631 with an intermediate buffer
storage.
A network element or statement which was
inputted, appears initially in the input
field of the screen. After depressing keys
or
, the statement is trans-
ferred to the intermediate buffer.
After a completed input or alteration of a
network, the contents of the intermediate.
buffer must be transferred to the PU-memory
by pressing key
.
Note:
During off-line operation the transfer from
the intermediate buffer to the PU-memory
is
done automatically as soon as the inter-
mediate buffer
is full. Hence key m needs
only to be depressed at the end of program
inputting.

Puttingintooperation
Connect mains cable and check mains
voltage.
Important: Keep ventilation slots free!
Switch mains switch to position
I.
Display:
State of execution of PU631 system-
software.
Message
**9 (backup-timeexceeded) if
unit was switched-off for more than
1/2 hour.
Call function selection menu with
\
Select PC type
Initial condition after switching on:
"55-1 10A"
Select operating mode
PU in off-line mode (without PC)
PU in on-line mode, PC with PC-memory
When using PC S5-llOA/ 010, the
operating mode 21, i.e. "PU in on-line
mode, PC with PC-memory"
is not
possible.
PU in on-line mode, PC with
PU-memory
.
Initial condition after switching on:
L..,)
"PU in off-line mode".
1) If no EPROM-module has been plugged into
mode of the PU, the operating mode select
to "STOP".
a PC 55-130, then in this operating
:or switch of the PC must be switched

Program inputting
Call function selection menu with
Select PU-function
Inputting in
LAD
Inputting in STL
- -
Start of program if a program is stored
in the PU-memory.
EM is displayed in input field if
the PU-memory has been cleared.
Start inputting
Before inputting, select required point
in program (see program outputting,
page 18).
11.1
Example:
LAD: 4
STL: AI 1.1
Note:
During inputting, all correction functions
are possible (see program correction,
page
20).
When using LAD, the networks may be inputted
continuously.
A new network is started, if
after an output, a contact or the beginning
of a parallel branch are programmed.
If instead of key
a , key m is pressed
then only those networks which are stored up
to the statement pointer, are trans-
ferred to the PU-memory.

Examples for inputtingin LAD
Maximum size of a network
The use of keys
,
, , and
. .,I
Example 1:
Example 2:

1 Example 3: (only for
Example 4: (only for

Example 5: (only for PC 55-130 A/K)
. Note:
, \
i. i At the end of inputting,key
',,../
must be depressed. This causes the
program to be transferred from the
intermediate buffer to the PU-memory.

Programoutputting
Call function selection menu with m
Select PU-function
Gutputting in
LAD
Gutputting in STL
Display:
Start of program if a program is stored
in the PU-memory.
EM is displayed in the input field,
if the PU-memory has been cleared.
Calling up programsection
A requ~redsection or point of a
program (e.g. Network
5 or statement 70)
may be called up by first selecting
"PROG. LAD" or "PROG. STL" and then by
using the positioning keys (see page
8).
Alternatively, a search run may be
employed.

\' .
Search run
Search run for a statement
Cancel input field
Example STL:
AI 1.1
LAD: 11.1
+l-
If the required statement cannot be found,
then
EM is displayed.
The search run
is continued by pressing
key
H once more.
\
Search run for an operand
Cancel input field
Example:
I 1.1
If the required operand cannot be found,
then
EM is displayed.
The search run
is continued by pressing
key
H once more.
Search run for an address
Cancel input field
'
Example : .l5
Search run for a network
Cancel input field
Example:
3

Programcorrection
Call function selection menu with
select PU-function
correction i.n
LAD
correction in STL
Overwriting of Statements
use positioning keys or search run
(see Program outputting);
Statement is displayed in the
input field.
Begin with correction
Example
STL: AI 1.6
LAD: 11.6
+F
End correction
20

l nsertingstatements
use positioning keys or search run
(see program outputting, page
18);
the statement in front of which a new
statement
is to be inserted is now dis-
played in the input field.
begin with corrections
see previous examples
end correction
Erasina statements
use positioning keys or search run
(see Program outputting, page
18);
the statement to be erased is now
displayed in the input field.
Note:
If
at the end of a correction key
is pressed instead of key
,
then the corrections are not trans-
ferred to the PU-memory.
Once correction has been started,
functions may be overwritten and
statements added or erased, in any
desired combination. Furthermore,
positioning is possible with keys
and .