Chapter 11 DeviceNet Remote I/O Module AHRTU-DNET 
11-11 
Special module 
Default I/O mapping data length (Unit: Word) 
AH08DA-5C  16  N/A 
AH10SCM-5A  20  38 
Note: 
  AH10SCM-5A can only be mounted to the main rack. 
  The data mapping length of the digital I/O module connected to AHRTU-DNET-5A is fixed. 
Those of the analog I/O module and AH10SCM-5A are the data length of the mapped 
parameters for I/O data exchange and can not be modified. 
  When AHRTU-DNET-5A connects the analog I/O module and AH10SCM-5A, the mapped data 
that AHRTU-DNET-5A uploads and downloads could be default or optional according to the 
users’ need. The input and output mapped address length of the selectable parameters of each 
analog I/O module could not exceed 20 words. Besides the input and output mapped address 
length of the selectable parameters could not exceed 20 words, AH10SCM-5A can provide 
maximum 100 words of input and 100 words of output mapped addresses for serial port data 
exchange. 
11.3.3  Connecting the Cable to the DeviceNet Connector 
Please use the special tool to strip off the skin of the 
communication cable for 30 mm. Note not to damage 
the shielded wire. 
 
After removing the outer metal shielded net and 
aluminum foil, you will see 2 power wires (red and 
black), 2 signal wires (blue and white) and one 
shielded wire. 
 
Strip off the plastic skin of the power wire and signal 
wire for an appropriate length after removing the 
outer metal shielded net and aluminum foil of the 
cable. 
 
Insert the stripped communication cable wires to the 
holes of the communication connector in order as the 
right figure shows.