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- Modbus | Wireless Modbus
- PowerIO
- EtherCAT P
- Accessory
Description
Line termination device with terminating resistor
MODKON® LA- Modbus
MODKON® LA-Modbus T3 line termination device with terminating resistor, in an impact resistant plastic housing with quick-locking screws.
The Modbus device serves as an active bus termination for RS485 networks (ANSI TIA/ EIA-485), such as Modbus RTU. It includes a terminating resistor with a biasing network, which pre-defines the bus signals to a safe value (fail-safe biasing) during bus idle time.
The bus termination can be fully switched on or off via DIP switches. This allows various operating scenarios to be tested in a simple manner whenever servicing is needed.
The Modbus device serves as an active bus termination for RS485 networks (ANSI TIA/ EIA-485), such as Modbus RTU. It includes a terminating resistor with a biasing network, which pre-defines the bus signals to a safe value (fail-safe biasing) during bus idle time.
The bus termination can be fully switched on or off via DIP switches. This allows various operating scenarios to be tested in a simple manner whenever servicing is needed.
For very long network cables, both end points can also be provided with an active bus termination to improve interference immunity under harsh environmental conditions.
Technical details
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Power consumption
< 0.5 W/ 24 V DC;
< 0.5 VA/ 24 V AC
< 0.5 VA/ 24 V AC
Operating mode indicator
Status LED PWR ON
(supply voltage)
(supply voltage)
Electrical connection
0.2 - 1.5 mm², via push-in terminal
Cable connection
Cable gland, plastic (2x M 20 x 1.5;
with strain relief, exchangeable, inner diameter 8 - 13 mm)
with strain relief, exchangeable, inner diameter 8 - 13 mm)
Housing
plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
Housing dimensions
108 x 78.5 x 43.3 mm (Tyr 3 without display)
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529)*
Standards
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU