FP0 Hardware
Special Internal Relays
B-2
Matsushita Electric Works (Europe) AG
B.1
Special Internal Relays
The special internal relays turn on and off under special conditions. The on and off
states are not output externally. Writing is not possible with a programming tool or an
instruction.
Address
Name
Description
R9000
Self–diagnostic
error flag
Turns on when a self–diagnostic error occurs.
The self–diagnostic error code is stored in DT9000.
R9001 to
R9003
Not used
R9004
I/O verification error
flag
Turns on when an I/O verification error occurs.
The position number of the I/O where the verification error was occured is
stored in DT9010.
R9005,
R9006
Not used
R9007
Operation error flag
(hold)
Turns on and keeps the on state when an operation error occurs. The address
where the error occurred is stored in DT9017 (indicates the first operation
error which occurred).
R9008
Operation error flag
(non-hold)
Turns on for an instant when an operation error occurs.
The address where the operation error occurred is stored in DT9018. The
contents change each time a new error occurs.
R9009
Carry flag
Turns on for an instant,
– when an overflow or underflow occurs.
– when “1” is set by one of the shift instructions.
R900A
> flag
Turns on for an instant when the compared results become larger in the “F60
(CMP) to F63 (DWIN) comparison instructions.”
R900B
= flag
Turns on for an instant,
– when the compared results are equal in the comparison instructions (F60 to
F63).
– when the calculated results become 0 in the arithmetic instructions.
R900C
< flag
Turns on for an instant when the compared results become smaller in the “F60
(CMP) to F63 (DWIN) comparison instructions.”
R900D
Auxiliary timer
contact
Turns on when the set time elapses (set value reaches 0) in the timing opera-
tion of the F137 (STMR)/F183 (DSTM) auxiliary timer instruction.
It turns off when the trigger for auxiliary timer instruction turns off.
R900E
Tool port error flag
This turns on when an error occurs during communication with a programming
tool.
R900F
Constant scan error
flag
Turns on when scan time exceeds the time specified in system register 34
during constant scan execution.
R9010
Always on relay
Always on.
R9011
Always off relay
Always off.
R9012
Scan pulse relay
Turns on and off alternately at each scan.
R9013
Initial on pulse relay
Turns on only at the first scan in the operation.
Turns off from the second scan and maintains the off state.
R9014
Initial off pulse relay
Turns off only at the first scan in the operation.
Turns on from the second scan and maintains the on state.
R9015
Step ladder initial
on pulse relay
Turns on for an instant only in the first scan of the
process the moment step ladder process is opened.
Summary of Contents for FP Series
Page 12: ...Chapter 1 Overview...
Page 21: ...FP0 Hardware Overview 1 10 Matsushita Electric Works Europe AG...
Page 22: ...Chapter 2 Control Units...
Page 44: ...Chapter 3 Expansion I O Units...
Page 67: ...FP0 Hardware Expansion I O Units 3 24 Matsushita Electric Works Europe AG...
Page 68: ...Chapter 4 Analog I O Unit...
Page 87: ...FP0 Hardware Analog I O Unit 4 20 Matsushita Electric Works Europe AG...
Page 88: ...Chapter 5 FP0 I O Link Unit MEWNET F...
Page 102: ...Chapter 6 Power Supply Unit...
Page 105: ...FP0 Hardware Power Supply Unit 6 4 Matsushita Electric Works Europe AG...
Page 106: ...Chapter 7 I O Allocation...
Page 112: ...Chapter 8 Installation...
Page 122: ...Chapter 9 Wiring...
Page 139: ...FP0 Hardware Wiring 9 18 Matsushita Electric Works Europe AG...
Page 140: ...Chapter 10 Trial Operation...
Page 143: ...FP0 Hardware Trial Operation 10 4 Matsushita Electric Works Europe AG...
Page 144: ...Chapter 11 Self Diagnostic and Troubleshooting...
Page 156: ...Appendix A System Registers...
Page 170: ...Appendix B Special Internal Relays...
Page 174: ...Appendix C Special Data Registers...
Page 183: ...FP0 Hardware Special Data Registers C 10 Matsushita Electric Works Europe AG...
Page 184: ...Appendix D Dimensions...
Page 195: ...FP0 Hardware Dimensions D 12 Matsushita Electric Works Europe AG...