11 PROCESS CONTROL INSTRUCTIONS
11.3 Control Operation Instructions
1349
11
This instruction increases or decreases the output value (BW) at a fixed rate.
The instruction performs the following processing as specified by operation output signal (e1), output addition signal (e2), and
output subtraction signal (e3).
• In manual mode (operation output signal (e1) = 0), the output value (BW) equals the output set value (E3).
• In automatic mode (operation output signal (e1) = 1), the instruction performs the following operations as specified by the
output addition signal (e2) and output subtraction signal (e3).
e2 e3 BW
10BW=BW+|E1|T
provided that when d1BW, BW equals d1.
01BW=BW-|E2|T
provided that when BWd2, BW equals d2.
11BW=BW
00
Error code Error content
3402H The value specified by (s1) or (s2) is a subnormal number or NaN (not a number).
3403H An overflow has occurred.
1s
E2
E1
1s
e3=1e2=1
100
t
d1
E3
d2
e1