DH.21B/41B
Digital inputs
(X31:3 – X31:10)
Digital outputs
(X31:3 – X31:10)
CAN 2 system bus
(X32:1 – X32:3)
CAN 1 system bus
(X33:1 – X33:3)
Ethernet 1
Ethernet 2
USB
RS485 interface COM 1/2
(X34:1 – X34:6)
SD memory cards
OMH41B-T0 – T25
OMC41B-T0 – T25
Isolated (optocoupler), PLC-compatible (IEC 61131-2), sampling cycle corres-
ponds to task cycle time.
•
Can be configured as digital inputs or outputs
•
Internal resistance: R
•
Signal level:
– DC (+13 V to +30 V) = "1": Contact closed (according to IEC 61131)
– DC (–3 V to +5 V) = "0": Contact open (according to IEC 61131)
PLC-compatible (IEC 61131-2), response time 1 ms
•
Can be configured as digital inputs or outputs
– Maximum permitted output current I
– All 8 digital outputs can be subject to the maximum approved output
current I
load at the same time.
A_max
•
Signal level: "0" = 0 V "1" = DC +24 V
•
System bus CAN 1 and CAN 2 to CAN specification 2.0, parts A and B,
transmission technology to ISO 11898
•
The CAN 2 system bus is electrically isolated.
•
Max. 64 stations (DHE41B) / 16 stations (DHE21B) per CAN system bus
•
Max. 64 (DHE41B) / 16 (DHE21B) SCOM transmit objects / 256 receive
objects per CAN system bus
•
Address range 0 – 63
•
Baud rate: 125 kBaud – 1 MBaud
•
If X32 or X33 is the bus terminator, you must connect a terminating resistor
(120 Ω) externally.
•
You can remove X32 or X33 without interrupting the system bus.
•
The system bus can be run in layer 2 (SCOM cyclic, acyclic) or in accord-
ance with the SEW MOVILINK
Plus
Fast system bus SBus
•
TCP/IP
•
Connection options: Engineering PC, other controller, Intranet
USB 1.0 for connecting an engineering PC
•
One DOP11B operator panel or one gearmotor with integrated MOVIMOT
frequency inverter can be connected per RS485 interface.
•
E/A standard, 57.6/9.6 kBaud, max. total cable length 200 m
•
Dynamic terminating resistor with fixed installation
•
COM 2 is electrically isolated from the DH.21B/41B option card.
•
PC readable
•
Includes:
– Firmware
– IEC program
– Data
•
At least 128 MB memory
Manual – DHE/DHF/DHR21B (standard) and DHE/DHF/DHR41B (advanced)
Technical data and dimension drawings
Technical data of the DH.21B/41B option card
≈ 3 kΩ, I
≈ 10 mA
i
I
= DC 150 mA per digital output
A_max
®
protocol.
®
based on EtherCAT
(with DH.41B)
10
®
77
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