Hitachi SJ-FB Manual page 22

7.3.4 Pulse train mode selection
The following 3 ways of pulse line input can be selected by the setting of P013.
1) 90° phase difference pulse train (Mode 0)
SAP
SAN
(Pulse train input)
SBP
SBN
(Pulse train input)
Detected
pulse number
2) Forward/Reverse command + pulse train (mode 1)
SAP
SAN
(Pulse train input)
SBP
SBN
(Forward/reverse command)
Detected
pulse number
3) Forward pulse train + Reversion pulse train (mode 2)
SAP
SAN
(Forward pulse train input)
SBP
SBN
(Reverse pulse train input)
Detected
pulse number
Forward
Forward
Forward
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Chapter 7 FUNCTIONS
Reverse
Reverse
Reverse
Time
Time
Time