BEx Remote IO Valve Terminal

BEx Remote IO Valve Terminal

With this 3 in 1 solution, the plants and machine builders have a decentralized and compact Remote IO valve terminal for the first time for controlling pneumatic actuators for the hazardous area Zone 1/21.


Applications Include:

  • Paint shops
  • Pharmaceutical plants
  • Chemical plants
  • Tank farm
  • Bulk materials handling systems
  • Mixing / grinding plants
  • Industrial heating / cooling systems
  • Sewage treatment plants and much more



  • The Ethernet connection (Profinet or Modbus TCP / IP)
    is executed in increased safety Ex e.
  • Ex media converters or fieldbus couplers in the safe area are not required and the full Ethernet performance can be used.
  • No IO modules required on the PLC
  • The BEx1 module does not have to be parameterized or configured and behaves transparently in the control I / O.

Installation Scheme BEx1 Remote IO Valve Terminal

User Benefits

Compact – Simple – Fast

  • Central Ethernet connection, central compressed air connection
  • The compact housing enables optimal decentralized installation in the system and guarantees short distances to the sensors and the pneumatic actuators.
  • No compressed air tubing inside the housing.
  • Cost savings and less installation effort

The ATEX certified system in the field housing is designed for installation in Zone 1/21

The BEx1 Remote IO valve terminal combines bus nodes, isolating switching amplifiers, intrinsically safe IO channels and the pneumatic valve terminal.

Valve Terminal


  • The valve terminal CPV10-EX-VI is intrinsically safe
    II 2G Ex ib IIC T4 (-5°C ≤ Ta ≤ 50°C)
  •  Pneumatic aluminum multipole, IP65
  •  Valve discs 10 mm wide, nominal flow 400 l/min
  • Operating pressure: 0 .. 10 bar ; Pilot pressure: 3 .. 8 bar
  •  4 valve discs with valve 2x 3/2- way
    (further variants on request)
  • Manual override detent

Functions and Communication


  • 8 outputs to 8 valves 3/2 way pre-wired
  • 16 Namur inputs for position feedback
  • 8 additional channels individually adjustable

(AI, AO or DO or switch mode)


8 DO to 8 valves 3/2-way pre-wired
16 Namur inputs
8 additional channels individually adjustable as
AI, AO or DO or switch mode

Ex e enclosure IP65 Stainless steel 1.4404 (V4A)
Dimension: 380 x 380 x 161 mm
Ambient temperature: -5°C bis +40°C
Certificate: TPS 07 ATEX 61951 1
Type of protection: II 2(1)G/D
Ex e mb ib [ia Ga] IIC T4 Gb
Ex tb [ia Da] IIIC T80°C Db

4 cable glands M20x1,5 (Ex e) 4-13 mm
20 cable glands M20x1,5 (Ex i) 4-13 mm
(all cable glands are closed with mushroom caps)
4 wall mounting bracket
2 pull in nuts M5 (mounting for optional Festo service unit
   combination MSB4)

1 BEx1 remote IO Module Profinet type 14200101
  (Alternative Modbus TCP/IP)

1 Festo valve terminal CPV10 Ex i with aluminum multipole
   Typ 10P-10-4A-IC-R-Y-4CY-EX3+GQCA
   Equipped with 4 x CY 2×3/2 valves, normally closed, with integrated
   back pressure protection

shield rail with shield connection clamp or EMC cable glands on request

Subscribe to the Exloc Newsletter

Join the Exloc mailing list to receive the latest news and updates from our team.

You have Successfully Subscribed!