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 3. Specifications 

 

 

3.1 Performance specifications 

The table below lists the performance specifications of DN91.The table below lists the 
performance specifications of DN91. 

 

Item Specifications 

Node type 

Group 2 dedicated client 

Station numbers which can be set 

0 to 63 

Number of connections which can be 
generated 

63 connections for I/O communications 

63 connections for message communications 

Transmitting 

2048 points (256 bytes) *2 

I/O 
communications  Receiving 

2048 points (256 bytes) *2 

Transmitting 240 

bytes 

R

ate

 o

f  

com

m

unicat

ions 

dat

Message 
communications  Receiving 240 

bytes 

Communications speed 

One speed can be selected from 125kbps, 250kbps, and 500kbps. 

Maximum transmitting  

distance of trunk line 

Length of  

drop line 

Communications

speed 

Thick 

Cables

Thick and 

Thin 

Cables 

Thick and 

thin cables 

coexist 

Maximum Total

125 

kbaud 

500m 

156 

250 

kbaud 

250m 78m

Com

m

unicat

ions specif

icat
ions 

Maximum cable length *1 

500 

kbaud 

100m 

100m 

See Section 

3.1.1 

6m 

39m

Number of input/output  
occupied points 

Special 32 points 

Internal current consumption 
(5V DC)(A) 

0.24 

Mass(kg) 

A1SJ71DN91: 0.23, AJ71DN91: 0.43 

*1: The maximum cable length complies with that in the DeviceNet specification (Release 2.0) Volumes 1 

and 2. 

*2: Up to 255 bytes can be transferred per slave station. 

 

3.1.1 Maximum Transmitting Distance when Thick and Thin Cables Coexist 

The table below lists both the maximum transmitting distance when thick and thin cables 
coexist. 

Communications speed 

Maximum transmitting distance of trunk line when thick 

and thin cables coexit 

125kbaud 

Thick cable 5

×

Thin cable length 500m 

250kbaud 

Thick cable 2.5

×

Thin cable length 250m 

500kbaud 

Thick cable Thin cable length 100m 

 

Содержание MELSEC-A A1SJ71DN91

Страница 1: ...roduced in this manual carefully and handle the product correctly with full attention to safety The instructions given this manual are concerned with this product Refer to the User s Manual of the CPU...

Страница 2: ...of module insert the module fixing tab into the fixing hole in the base unit until it stops Then securely mount the module with the fixing hole as a supporting point If the module is not installed pr...

Страница 3: ...se an operation error resulting from a contact error SETUP AND MAINTENANCE PRECAUTIONS CAUTION z Do not touch the terminals while the power is on Doing so may cause malfunctions z Make sure to shut of...

Страница 4: ......

Страница 5: ......

Страница 6: ......

Страница 7: ...f the PRODUCT in y Nuclear Power Plants and any other power plants operated by Power companies and or any other cases in which the public could be affected if any problem or fault occurs in the PRODUC...

Страница 8: ...duction This manual describes the specifications and part names of Model AJ71DN91 A1SJ71DN91 DeviceNet Master Module referred to as AJ71DN91 A1SJ71DN91 or DN91 hereafter which is used in combination w...

Страница 9: ...U A1SCPUC24 R2 A2SCPU S1 A2SHCPU S1 A2USCPU S1 A2USHCPU S1 A2ASCPU S1 S30 S60 Q2ASCPU S1 Q2ASHCPU S1 No limitations A1CPU A2CPU S1 A3CPU A1NCPU A2NCPU S1 A3NCPU A3MCPU A3HCPU A2ACPU S1 A3ACPU A2UCPU S...

Страница 10: ...Thick Cables Thick and Thin Cables Thick and thin cables coexist Maximum Total 125 kbaud 500m 156 m 250 kbaud 250m 78m Communications specifications Maximum cable length 1 500 kbaud 100m 100m See Sec...

Страница 11: ...is section describes the part names of DN91 AJ71DN91 AJ71DN91 RUN L RUN MS NS RS 232 C RS 232C connector DeviceNet connector DeviceNet A1SJ71DN91 A1SJ71DN91 RUN L RUN MS NS RS 232 C DeviceNet RS 232C...

Страница 12: ...aying network state Flickering In on line state but communications impossible with slave station Duplicated MAC ID error AJ71DN91 RUN L RUN MS NS A1SJ71DN91 RUN L RUN MS NS NS Red bottom Displaying ne...

Страница 13: ...ring RS 232C Cable The illustration below explains how to wire the RS 232C cable connecting DN91 with a PC AT personal computer Dsub female connector for A 15 D530N15 9 pins Dsub female connector for...

Страница 14: ...7 Outside Dimensions 1 AJ71DN91 AJ71DN91 RUN L RUN MS NS RS 232 C 250 9 84 106 4 17 4 2 0 17 37 5 1 48 DeviceNet Unit mm inch...

Страница 15: ...2 A1SJ71DN91 A1SJ71DN91 RUN L RUN MS NS RS 232 C 130 5 12 93 6 3 69 6 5 0 26 34 5 1 36 DeviceNet Unit mm inch...

Страница 16: ...not to be the cause of Mitsubishi machine damage or lost profits caused by faults in the Mitsubishi products damage secondary damage accident compensation caused by special factors unpredictable by Mi...

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