.TH E1432_SET_ARM_CHANNEL_PER_INPUT 3 E1432
.SH NAME
.nf
e1432_set_arm_channel_per_input \- Assign a tach arm channel for input channel
e1432_get_arm_channel_per_input \- Get current arm channel of a input channel
.fi
.IX e1432_set_arm_channel_per_input(3) 3
.IX e1432_get_arm_channel_per_input(3) 3
.SH SYNOPSIS
.cS
SHORTSIZ16 e1432_set_arm_channel_per_input(E1432ID hw, SHORTSIZ16 inID,
                                 SHORTSIZ16 tachID)
SHORTSIZ16 e1432_get_arm_channel_per_input(E1432ID hw, SHORTSIZ16 inID,
                                 SHORTSIZ16 *tachID)
.cE
.SH DESCRIPTION
This function applies only the the E1432 option 204 firmware.

\fIe1432_set_arm_channel_per_input\fR assigns a single tach channel as the 
arming channel for RPM armed measurements. This function allows the creation
of two groups of input channels, each associated with with a different 
tach channel for RPM arming and resampling (in the case of order tracking).
These channel groups MUST be on the same module as the tach channel.

\fIe1432_get_arm_channel_per_input\fR returns the arming tach channel of an 
input channel into a memory location pointed to by \fItachID\fR.

\fIhw\fR must be the result of a successful call to
\fIe1432_assign_channel_numbers\fR.

\fIinID\fR is the ID of a single input channel or group of input channels
residing on the same module as the tach channel, \fItachID\fR.

\fItachID\fR is the ID of a single tachometer channel.  This parameter can
be set to -1 to assign no tach channel to the input channel.

\fBNOTE:\fR  This function interacts with \fIe1432_set_arm_channel\fR in 
order to be backward compatible.  If
a call is make to \fIe1432_set_arm_channel\fR, the tach channel associated
with ALL input channel is changed to reflect the parameters in that call.

.SH "RESET VALUE"
After a reset, all input channels are initialized to have no arming channel
associated with them (-1). 
.SH "RETURN VALUE"
Return 0 if successful, a (negative) error number otherwise.
.SH "SEE ALSO"
.na
e1432_set_trigger_channel, e1432_set_trigger_mode, e1432_set_arm_mode,
e1432_set_arm_channel
.ad
