YOKOGAWA VZ20X, Technical Information

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Monitoring method GA10 Modbus/TCP communication
With option /DM
(Data merge function)
Device time PC time Modbus/TCP
(Function code 03)
Modbus/TCP
(Function code 70/71)
Number of connected units 15 units/120 channels
(Use VZ20X time
synchronization)
100 units/800 channels
without VZ20X time
synchronization
15 units/120 channels
(*1) with VZ20X time
synchronization
100 units/800 channels
(*1)
No restrictions
(Depends on client)
15 units/120 channels
(*1)
GA10 [Monitor] screen • Mixed devices
• Up to 50 channels per
screen
Displayed for each units • Mixed devices
• Up to 50 channels
per screen
- -
GA10 recording file 1 For each units 1 - -
Data acquisition interval VZ20X monitor interval
(1 to 100 ms) (*2)
VZ20X monitor interval
(1 to 100 ms) (*2)
GA10 monitor interval
(100 ms to 1 hour)
Depends on client
(*3)
VZ20X monitor interval
(1 to 100 ms) (*2)
Time of monitoring data VZ20X time stamp VZ20X time stamp PC time Client device time
or VZ20X time stamp
reading is possible
VZ20X time stamp
Input
sampling
synchronizati
on between
VZ20X units
Without VZ20X
time
synchronization
Not synchronized Not synchronized Not synchronized Not synchronized Not synchronized
With VZ20X time
synchronization
Synchronized Synchronized Not synchronized Synchronization is possible
by using VZ20X
measurement time
Synchronized
Programming Not required Not required Not required Depends on client Required
(*1) The number of connected units is restricted depending on the data acquisition interval, the performance of the PC (including GA10) or PLC, and the operating
environment (OS, CPU, installed software, programming, etc.).
(*2) With VZ20X time synchronization, all VZ20X units have the same data acquisition interval.
(*3) If the VZ20X data acquisition interval is 1 ms, the Modbus register update interval is 10 ms.
Otherwise, the data acquisition interval and register update interval are identical.
1.1 Outline: Connection Methods and Functions
1.2 Items to Prepare
Item Description
VZ20X Analog Sensing Unit Purchased product
VZ Configurator Download from Yokogawa Partner Portal.
https://partner.yokogawa.com/global/
Ethernet cable STP Category 5e or higher recommended.
Obtain the required number of cables.
USB cable Obtain Type-A to Type-C, or Type-C to Type-C,
depending on the connection.
24 V power supply Varies depending on the connection.
Use a power supply that satisfies the power supply
requirements for the product as follows.
• Power terminal: Rated voltage 24 V DC (+10%/-15%)
• Power consumption: 4.5 W or less
* Power other than 24 V can be supplied via Type-C to Type-C USB cable.
Cables Obtain the required number of cables for the power supply
and input connections.
For precautions on wiring the cables, refer to "4. Wiring" in
the Model VZ20X Analog Sensing Unit User's Manual.
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TI 77V01B01-11EN Oct.18, 2021-00