4
IM 77J01P08-01E
6th Edition
4. DESCRIPTION OF FRONT PANEL
4.1 Front Panel
The communications connector in the front panel is used for
setting up parameters through a PC (VJ77 PC-based Parameters
Setting Tool) .
Communications connector
4.2 Connector for Communication
< How to connect with the setting tool>
JUXTA
VJ series
Modular-jack
conversion adapter
Dedicated adapter for VJ77
(L4506HA)
Micro USB (USB2.0)
cable
PC with the
VJ77 installed
• Use the VJ77 of version R2.02.01 or later.
5. SETTING PARAMETERS
Set the parameters using a PC (VJ77 Parameters Setting Tool).
Refer to “6. LIST OF PARAMETERS” in this manual and the
User’s Manual for VJ77 PC-based Parameters Setting Tool (IM
77J01J77-01E). Parameters are indicated inside the
[ ]
.
5.1 Settings Related to Inputs and Outputs
5.1.1 Input Display Unit
The input display unit is used for referring the input signal.
Select and set "Hz" or "kHz" in
[D20: UNIT]
.If the input range
exceeds 32000Hz,Please select "kHz".
5.1.2 Pulse Rate
Set the pulse rate within the numerically specified range in
[D52: PULSE RATE]
.
Setting range:
0.0001 to 2.0000(settable up to 4 decimal
places)
When the pulse width type is set to
“THROUGH” (no change), effective range is
0.0001 to 1.0000.
5.1.3 Pulse Width Type
Select and set “THROUGH” or “ON PULSE” in
[D53: PULSE
TYPE]
.
THROUGH:
Outputs ON-state pulse time of frequency as
it is.
ON PULSE:
Outputs ON-state pulse time after chang ing it
to the set value.
When the instrument is used as a pulse
signal repeater, set the pulse width type to
“THROUGH”, and the pulse rate to “1.0000”.
5.1.4 Pulse Width Time
The pulse width time is set when the pulse width type is set to
"ON PULSE."
Select and set "12.5µs", "50µs", "100µs", "12.5ms", "30ms",
"50ms", or "100ms" in
[D54: PULSE WIDTH]
.
5.1.5 Pulse Logic (D/R)
The pulse logic (direct/reverse operation) of the pulse
output can be changed by setting
[D50: OUT1 DR]
. Select
REVERSE for reverse operation, and DIRECT for normal
operation.
5.1.6 Input Filter
When the chattering noise is generated in input, the input filter
is used to restrain the influence.
Select and set "ON" in
[D58: INPUT FILTER]
, then the input
filter for time constant of about 10ms will be connected.
When set to ON, the input frequency is limited to 100Hz or
less and the minimum pulse width is 3ms.
5.2 Settings Related to Communication
Function
Set the following parameters when output-2 is specified
for communication function. For more information on the
communication function, see the Instruction Manual for VJ Series
Communication Function (IM 77J1J11-01E).
5.2.1 Communication Protocol
Set the communication protocol by selecting from among
PCLINK, PC-LINK WITH SUM, MODBUS ASCII, MODBUS
RTU, and LADDER in
[F01: PROTOCOL]
.
5.2.2 Communication Address
Set the address number of the isolator numerically in a range
of 1 to 99 in
[F02: ADDRESS]
.
5.2.3 Baud Rate
Set the baud rate by selecting from among 1200, 2400, 4800,
9600, 19200, and 38400 bps in
[F03: BAUD RATE]
.
5.2.4 Parity
Select and set NONE, EVEN, or ODD in
[F04: PARITY]
.
5.2.5 Data Length
Select and set 7 bits or 8 bits in
[F05: DATA LEN]
.
5.2.6 Stop Bit
Select and set 1 bit or 2 bits in
[F06: STOP BIT]
.
5.2.7 Input Decimal Point Position
Number of digits of decimal places (setting of D register
[D0003]) can be set.
Select and set among 0 to 5 digits in
[F07: INPUT DEC PT]
.
