IDEC SX5L Series - Manual (Page 43)

4: S OFTWARE S PECIFICATIONS
4-8 SX5L C OMMUNICATION T ERMINAL U SER ’ S M ANUAL
Shot Output/Digital Input Functional Block
The Shot Output/Digital Input functional block is designed for start/stop control. The output pulse signals can be used to
turn on and off external keep relays. While input variable nviOVR is off, input variable nviDO can be used to generate a
start or stop signal. For example on DIO[0], when nviDO[0] receives an ON signal, output terminal 0 outputs a start pulse.
When nviDO[0] receives an OFF signal, output terminal 1 outputs a stop pulse. When input variable nviOVR[0] turns on,
output terminal 1 outputs a stop pulse and subsequent nviDO[0] signals are ignored.
This functional block also has input terminals to receive the operation status and alarm inputs, which are reflected on out-
put network variables nvoDI to be sent to the network. The output network variables have the same function as the Digital
Input functional block, and have no relationship with output pulse signals sent from output terminals.
Initial Status Transmission
This functional block sends output network variables within 3 seconds to the network after powerup. The delay depends on
a random number based on the Neuron ID, and differs on each node.
The sending time can be delayed by changing the nciPwrup value designated in the Node Object functional block. At sys-
tem startup, if the SX5L sends output network variables before the addressee device is ready to receive communication, set
the nciPwrup to a larger value.
The preset value for nciPwrup can be between 0 and 60 seconds (0.1-sec increments). The sending time is determined by
the sum of the nciPwrup value and a random number.
Event-driven Transmission
When the status at any input terminal changes or when receiving a request (polling) from the network, this functional
block sends a corresponding output network variable.
I/O Name Type Description
Input Network Variable
nviDO[0] SNVT_switch
Sends star t/stop pulses from Star t 0 and Stop 0
(output terminals 0 and 1)
nviDO[1] SNVT_switch
Sends star t/stop pulses from Star t 1 and Stop 1
(output terminals 2 and 3)
nviDO[2] SNVT_switch
Sends star t/stop pulses from Star t 2 and Stop 2
(output terminals 4 and 5)
nviDO[3] SNVT_switch
Sends star t/stop pulses from Star t 3 and Stop 3
(output terminals 6 and 7)
nviOVR[0] to [3] SNVT_switch
Sends stop pulses from Stop 0 to Stop 3 (output
terminals 1, 3, 5, 7), and disables nviDO[0] to [3]
Output Network Variable
nvoDI[0], [2], [4], [6] SNVT_switch Sends Status 0, 1, 2, and 3 to the network
nvoDI[1], [3], [5], [7] SNVT_switch Sends Alarm 0, 1, 2, and 3 to the network
nvoOVR[0] to [3] SNVT_switch
Sends the received nviOVR[0] to [3] values to the
network
Configuration Property
nciMaxStsSendT1[0] SCPTmaxSndT
nvoDI[0] and [1] hear tbeat transmission inter val
(factor y setting: 3 minutes)
nciMaxStsSendT1[1] SCPTmaxSndT
nvoDI[2] and [3] hear tbeat transmission inter val
(factor y setting: 3 minutes)
nciMaxStsSendT1[2] SCPTmaxSndT
nvoDI[4] and [5] hear tbeat transmission inter val
(factor y setting: 3 minutes)
nciMaxStsSendT1[3] SCPTmaxSndT
nvoDI[6] and [7] hear tbeat transmission inter val
(factor y setting: 3 minutes)
nviDO[3] nvoDI[6]
DIO[3]
nviOVR[3] nvoDI[7]
nvoOVR[3]
nviDO[2] nvoDI[4]
DIO[2]
nviOVR[2] nvoDI[5]
nvoOVR[2]
nviDO[1] nvoDI[2]
DIO[1]
nviOVR[1] nvoDI[3]
nvoOVR[1]
nviDO[0] nvoDI[0]
DIO[0]
nviOVR[0] nvoDI[1]
nvoOVR[0]