Omron C500-LDP01-V1 User manual

C500-LDP01-V1
Ladder Program I/O Unit
Operation Manual
Revised January 1992

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Notice:
OMRON products are manufactured for use according to proper procedures by a qualified operator
and only for the purposes described in this manual.
The following conventions are used to indicate and classify warnings in this manual. Always heed the
information provided with them.
Caution Indicates information that, if not heeded, could result in minor injury or damage
to the product.
DANGER! Indicates information that, if not heeded, could result in loss of life or serious
injury.
OMRON Product References
All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers
to an OMRON product, regardless of whether or not it appears in the proper name of the product.
The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means
“word” and is abbreviated “Wd” in documentation in this sense.
The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for any-
thing else.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
Note Indicatesinformationofparticular interestfor efficientand convenient operation
of the product.
1, 2, 3...
1. Indicates lists of one sort or another, such as procedures, checklists, etc.
OMRON, 1992
                   
               
  
                  
                
      !          
                  
    

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  
 
 
  
   
       
 !" 
 
 
  " #!  "! $
 %!& " ' #! 
 
  
 '(
)
'" ("
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+ 
 ,& % -
 (
)
!" ("
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+ .
 /(
)
/ ("
*
% .
 /
)
/0
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+ .
$ 1
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 1
*
+ .

!""! 
  +  1 ! 
 2 1 
   2 1 
  3! 
 2" 2 
 
!" # "! $
 2  (4  12 '/2( 1 .
 ! / .
 '! 56! / 7
 '02 ( / 
 %
&  '()! 
$ 5 1  /8" $
$ 1! -

+  1" 7
% !! 
  '! 
 5  +! " 2 
# $
&* ( ++ ,
* -. %

#
About this Manual:
This manual describes the installation and operation of the C500-LD01-V1 Ladder Program I/O Unit and
includes the sections described below.
Please read this manual completely and besure you understand theinformation provide before attempt-
ing to install and operation the Ladder Program I/O Unit.
Section 1
introduces the Unit and describes its components and the way it fits into a PC system. A com-
parison of the C500-LD01-V1 and the C500-LD01 is also provided.
Section 2
provides information on switch settings and how certain switch settings affect indicator opera-
tion. These switch must be set before mounting and operating the Unit.
Section 3
describes the data areas available for use in programming the Unit.
Section 4
provides information related to programming and operating the Unit. A list of programming in-
structions is provided in
Appendix C Programming Instructions . Details on programming can be found in
the
C500 Operation Manual .
Section5
describesthescanoftheUnitandhowtheoperatingmodeaffectsit.Italsodescribesscantime
and I/O response time calculations and provides tables of instruction execution times.
Section 6
provides basic troubleshooting steps, error messages provided by the indicators, andthe fuse
replacement procedure.


 

/ ! !     "!     '02 4  !8 #  "  '02
3!   3! ' " 3  8"  !8      3   4 
3    "!   3    4
  
   
       
 !" 


1-1 Features
The C500-LDP01-V1 Ladder Program I/O Unit executes a ladder program to
control external I/O independently of the PC. The ladder program contained in
the Unit is written by the user.
The C500-LDP01-V1 Ladder Program I/O Unit can be used with the following
SYSMAC C-series PCs: C500, C1000H, C2000H.
Applications Examples •External I/O can be controlled by the Ladder Program I/O Unit instead of the
PC.
•The Ladder Program I/O Unit can be used as a timer.
•The Ladder Program I/O Unit can be used as a high-speed input unit.
•By controlling external inputs and outputs, the Ladder Program I/O Unit can
reduce the processing load handled by the PC.
C500 Instructions TheLadderProgramI/OUnit uses thesame instructionsastheC500,soladder
programscanbeconstructedinthesameway.Atotalof49 differentinstructions
is available. (Not all C500 instructions are supported.)
The16DCinputsand16 transistoroutputscanbe connectedtoexternalI/Ode-
vices so theUnit can beused as for normalI/O operation. Of the16 DCinputs, 8
inputs (2 groups of 4) can be set for high-speed inputs with a minimum pulse
width of 0.5 ms, so inputs shorter than the scan time can be detected.
The Unit connects to the PC through 16 input points and 16 output points, so
control signals can be passed back and forth between the PC andthe Unit. Fur-
thermore, when the I/O WRITE and I/O READ (WRIT(87)/READ(88)) instruc-
tionsareexecuted inthePC program, upto 32wordsofdata canbe transferred
to or from the Unit.
Built-in Realtime Clock A realtime clock is built into the Unit, so it can act as a timer and manage I/O
timing.
1-2 System Configuration
The following figure shows a typical system configuration:
RS-485
connecting
cable
GPC
Memory Pack
C500-MP303-EV2
Output devices
Input devices
The Unit can be programmed through the GPC with Memory Pack
C500-MP303-EV2, through the FIT, or through LSS running on an IBM AT/XT
compatiblecomputer.Referto
AppendixCProgrammingInstructions foralistof
instructions.OnlineoperationsbetweentheUnitandtheGPC/FIT/LSSarepos-
sible in PROGRAM or MONITOR mode. They are not possible in RUN mode.
External I/O Points:
16 Input/16 Output
PC I/O Points:
16 Input and 16 Output
  Section 1-2


1-3 Comparing the C500-LDP01 and the C500-LDP01-V1
Thefollowingtable shows the improvements thathavebeenmadetocreatethe
C500-LDP01-V1.
Item C500-LDP01 C500-LDP01-V1
Instruction set 40 instructions The following instructions were added to make a
total of 49 instructions.
ASL(25): ARITHMETIC SHIFT LEFT
ASR(26): ARITHMETIC SHIFT RIGHT
ROL(27): ROTATE LEFT
ROR(28): ROTATE RIGHT
COM(29): COMPLEMENT
INC(38): INCREMENT
DEC(39): DECREMENT
SLD(74): ONE DIGIT SHIFT LEFT
SRD(75): ONE DIGIT SHIFT RIGHT
Number of
words allocated 2 words 16 PC output bits (0000 through 0015)
16 PC input bits (0100 through 0115)
The PC cannot access the Unit using the I/O
WRITE and the I/O READ (WRIT(87)/READ(88))
instructions.
2 words
16 PC output bits (0000 through 0015)
16 PC input bits (0100 through 0115)
With the proper switch settings, the PC can
control the Unit using the I/O WRITE and I/O
READ (WRIT(87)/READ(88)) instructions.
(Up to 32 words are written or read.)
Operating
modes Linked
operation RUN
PROGRAM
Independent
operation RUN
PROGRAM
The GPC/FIT/LSS* can operate with the Unit in
PROGRAM mode only.
Linked
operation RUN
PROGRAM
Independent
operation
MONITOR
(DEBUG)
RUN
PROGRAM
MONITOR
(DEBUG)
The GPC/FIT/LSS* can operate with the Unit in
either PROGRAM or MONITOR (debug) mode.
*GPC: Graphic Programming Console
FIT: Factory Intelligent Terminal
LSS: Ladder Support Software
      Section 1-3

1-4 Nomenclature
Indicators
Switches
Remove the display window
to access the switches.
Output connectors
Connector for transistor outputs.
(Use connector provided.)
Input connector
Connector for 24 VDC power supply input.
(Use connector provided.)
RS-485 interface connector
Connector for the GPC, FIT, or
LSS. Use one of the following
cables:
3G2A2-CN221 (2 m)
C500-CN523 (5 m)
C500-CN131 (10 m)
C500-CN231 (20 m)
C500-CN331 (30 m)
C500-CN431 (40 m)
C500-CN531 (50 m)
Mounting screw
Backplane connector
DIP Switch
Mounting screw
Front Panel Back Panel
 Section 1-4