Panasonic FP-E Programming Manual page 405

Flag conditions
・Error flag (R9007):
・Error flag (R9008):
Precautions during programming
The flag R900B used for the compare instruction is renewed each time a compare instruction is executed.
Accordingly:
− The program that uses R900B should be just after the F64 (BCMP) instruction.
− Output to an output relay or internal relay and save the result.
R0
F64 BCMP, DT 0, DT 1, WR 5
R0 R900B
R1
F60 CMP, DT 2, K 100
R1 R900B
Note
As shown in the above program, be sure to have the comparison
internal relay before flag R900B. However, if you are using R9010
(on all the time), then it is unnecessary to have the comparison
internal relay before R900B.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Turns on and stays on when:
Turns on for an instant when:
− The area specified using the index modifier exceeds the limit.
− The data specified by S1 is not BCD data.
− The specified data block area exceeds the limit.
* For FP2SH and EP10SH, the error flag (R9007) turns on only when these
operation errors occurs.
Y30
Result of F64
R2
Result of F60
High−level Instructions
3 − 141