Technical data

Number of Bus Terminals

64

Maximum fieldbus byte number

512 bytes input, 512 bytes output

Digital inputs

3, for connecting potential-free contacts (e.g. for window contact, dew point sensor, occupancy sensor)

Digital outputs

1 x LED output, constant current 10 mA , max. 24 V (e.g. for LED occupancy signal)
1 x 230 V_AC, 10 A, relay (e.g. for air heater)
3 x 230 V_AC, 1 A, relay (e.g. for 3-stage fan)
2 x 230 V_AC, 1 A, triac (e.g. for valves for heating and cooling)

Analog inputs

1 x PT/Ni1000 (PT1000: -20...+60 °C, NI1000: -15...+55 °C) for air temperature measurement
1 x resistance measurement for setpoint setting ( 0...10 kOhm)
3 x 0...10 V (e.g. for CO₂ sensor, air quality sensor, light sensor)

Analog outputs

2 x 0...10 V (e.g. air volume controller)

Sub-bus systems

1 x K-bus
1 x system bus for KL6583 (EnOcean)

1 x K-bus
1 x RS485 (e.g. Modbus-RTU/DMX)

Dielectric strength

500 V (supply voltage/fieldbus)

Supply voltage

110 ... 240 V_AC

Current consumption

typically 80 mA (230 V), max. 220 mA (85 V)

Power loss

max. 15 W, typically 8 W (without 24 V _DC consumers and without further bus terminals)

K-bus power supply

max. 200 mA

24V_DC power supply

max. 100 mA

Weight

approx. 350 g

Permissible ambient temperature range during operation

0 °C ... +55 °C

Permissible ambient temperature range during storage

-25 °C ... +85 °C

Permissible relative humidity

max. 95 %, no condensation

Vibration / shock resistance

conforms to EN 60068-2-6 / EN 60068-2-27

EMC immunity / emission

conforms to EN 61000-6-2 / EN 61000-6-4

Correct installation position

vertically on a mounting rail mounted horizontally on the wall (see chapter Installation position)

Protection class

IP20

Approvals/markings*

CE UKCA, EAC

Programming/configuration

with TwinCAT via Ethernet (TwinCAT 2.11 Build 2034 or higher, no TC3)

Program memory

48 kbyte (minus task-configuration minus POUs during online change)

128 kbyte (minus task-configuration minus POUs during online change)

Data memory

32 kbyte

128 kbyte

Source code memory

256 kbyte

Remanent flags

2 kbyte

Persistent data

1000 bytes

INPUT

2 kbyte

OUTPUT

2 kbyte

FLAG

4 kbyte

max. variable size

16 kbyte

Max. POUs

Limited by memory

PLC cycle time for 1,000 commands (without I/O cycle, K-bus)

approx. 0.9 ms

approx. 0.7 ms

Number of runtime systems

1

Programming languages

IEC 6-1131-3 (IL, LD, FBD, ST, SFC)

Online Change

yes

Fieldbus

Ethernet

Ethernet connection

2 x RJ45 (internal switch)

Auto-crossing

yes

Data transfer rate

10/100 Mbaud

Protocols

Modbus TCP/IP, Ethernet TCP/IP, Beckhoff ADS via TCP and UDP

Data transfer medium

4 x 2 twisted-pair copper cable; category 3 (10 Mbaud), category 5 (100 Mbaud)

Distance between modules

100 m (distributor hub to BC9191)

Line: max. 100 m between two BC9191

Topology

- star wiring
- line wiring (20 x BC9191 in line maximum)

Number of I/O modules

only limited by the IP address range

Number of I/O points

depending on the higher-level controller

Number of ADS connections via TCP/IP

5

Number of ADS connections via UDP/IP

1

Number of ModbusTCP connections

3

SMTP (Simple Mail Transfer Protocol)

yes

SNTP (Simple Network Time Protocol)

yes

BootP/DHCP

yes/yes

UDP socket connections

3

TCP socket connections

3