Yokogawa

ESB Bus Node Units

100-120 V AC
24 V DC
200 VA, 120 W
24 V DC power supply

Duplexed Field Control Unit

For Vnet/IP and FIO, for 19-inch Rack Mountable
100–120 V AC power supply
220–240 V AC power supply
Basic type
LFS1500 Control Function for Field Control Station (for Vnet/IP and FIO)

ESB Bus Interface Slave Module

8, isolated
4 to 20 mA 
24 mA
270 Ω (20 mA) to 350 Ω (4 mA)

Current Input Module

16, isolated
4 to 20 mA 
270 Ω (20 mA) to 350 Ω (4 mA)
±16 µA 
230 mA (5 V DC), 540 mA (24 V DC)

Power Supply Module

Power Supply Module
Two modules in case of 
dual-redundant configuration.
Power supply to the I/O modules
and supply power to the transmitters
The power supply terminals use M4 screws

Power Supply Module

Input Voltage: 100-120V or 200-240V
Output Voltage: 24V
Output Current :5A
Power Output: Up to 120W
Operating Temperature: -10°C to +55°C
Storage Temperature: -20°C to +70°C

Advanced Valve Positioner

Linear or rotary motion control valve
±0.5% of span (including linkages)
0.3% of span *1
Digital: FOUNDATION fieldbus
Supply voltage: 9 to 32V DC
Supply current: 17 mA (max)
140 to 700 kPa (20 to 100 psi)
0.32 Nm3/h (0.178 SCFM) at 140 kPa (20 psi) of air supply
6.6 Nm3/h (4.1 SCFM) at 140 kPa (20 psi) of air supply 
-40 to 85 deg C (-40 to 185 deg F)

Digital Output Module

Number of outputs 16-channel, module isolation 
Output voltage 24 V DC
Output voltage drop 1 V maximum
External power supply rating 24 V DC, 3.4 A minimum
Maximum leak current at output off status 1.6 mA
Output format Current source
Minimum load current 35 mA
Load resistance range 120 to 685 Ω 
Output response time 30 ms maximum

Optical ESB Bus RepeaterSlave Module

Optical ESB Bus RepeaterSlave Module
Star type connection Chain type connection Available 
for both star and chain type connection
Maximum two
Maximum 5 km (total two stages) 
In case of Vnet/IP system with the R1.03 or later
the total distance of two stagesis maximum 10 km
Current consumption: 0.5 A

Optical ESB Bus Repeater Slave Module

ESB Bus optical transport function
Star type connection 
Chain type connection 
Maximum two
Maximum 5 km (total two stages)
Current consumption: 0.5 A

Optical ESB Bus Repeater Module

Function: ESB Bus optical transport function
Connection method: Star type connection 
Chain type connection 
Available for both star and chain type connection.
Number of connecting stage: Maximum two
Transmission distance: Maximum 5 km (total two stages) 
In case of Vnet/IP system with the R1.03 or later, 
the total distance of two stagesis maximum 10 km.
Current consumption: 0.5 A

Optical ESB Bus Repeater Module

ESB Bus optical transport function
Connection method: 
Star type connection 
Chain type connection 
Available for both star and chain type connection.
Number of connecting stage: Maximum two
Transmission distance: Maximum 5 km (total two stages) 
In case of Vnet/IP system with the R1.03 or later, 
the total distance of two stagesis 
maximum 10 km.
Current consumption: 0.5 A

Optical ESB Bus Repeater Module

Product No. : SNT401-13
Product Type : Optical ESB Bus Repeater Master Module
1 - with no explosion protection
3 - ISA Standard G3 and temperature (-20 to 70°C)
CU1N - Connector unit for ESB Bus