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1.5 The DN211 Specification
1.5.1 The Function Specification
Table 1.4 lists the function specification of the DN211. The general specification of the DN211
conforms with the T2/T2E/T2N main unit.
Table 1.4 Function Specification
Item Specification
Module form (pet name) DN211
Transmission specification Conformed with the DeviceNet
Media access system CSMA/NBA system (note)
Modulation Baseband
Transmission path Bus topology
Data rate 125 kbps 250 kbps 500 kbps
Max. network length 500 m 250 m 100 m
Max. number of nodes 64 units/network (1 master device, 63 slave devices)
Connector MSTBP 2.5/5-STF-5.08 AB GY AU SO
TMSTBP 2.5/5-STF-5.08 AB GY AU
Phoenix Contact Corporation
Connection cable DeviceNet THICK cable (thick cable)
DeviceNet THIN cable (thin cable)
Communication function 1. Polling instruction/response mode
(synchronous/asynchronous)
2. Bit strobe instruction/response mode
(synchronous/asynchronous)
RAS function 1. Self-check when the power is ON
ROM, RAM, and CAN controllers
DN211 communication memory for T2/T2E/T2N
2. RAS information on the T2/T2E/T2N interface buffer memory
3. Information by reading RAS information
• Event trace
• CAN controller (circuit) information
4. Time setting function
5. Displaying the module status/network status on the 7-
segment LED on the front panel
Current consumption [mA] T2/T2E/T2N side (DC5V): 500 mA
Network side (DC 24 V): 90 mA
Outer dimensions [mm] 32.5 (W) × 138 (H) × 102.1 (D)
Weight [g] 200
Board specification One slot (slot width)
Mounting T2/T2E/T2N base unit (basic/extension)
I/O slot
Number of modules See "1.5.2 Number of Mounting Modules."
Access READ/WRITE instruction (module control, data input/output)
Note: CSMA/NBA : Carrier Sense Multiple Access with Non-destructive Bitwise Arbitration