Chapter 3    Setting 
   
6F8C1259 
 
  3.1  Switch Setting 
The switches that determine the operation mode and TC-net I/O loop address 
of PA912 are on the BU90A unit. 
The method to set the switches is shown below. 
  Important 
•
  Set the switches that determine the operation mode and station address of the PA912 module 
before turning the power on. 
 
3.1.1  TC-net I/O loop address setting switch (STN-H, STN-L) 
TC-net loop address setting switches are hexadecimal rotary switches that 
determine the loop address on the TC-net I/O loop. 
Set the station address (3 to 34) that has been assigned upon system 
configuration in a HEX code (03 to 22 (h)).    Assign an address with a different 
value to each of the nodes in the system. 
Table 3-1 shows the setting of a TC-net I/O loop address. 
 
 
Figure 3-1    TC-net I/O loop switch setting configuration 
 
Table 3-1    TC-net I/O loop address setting 
Name  Description  Remark 
 
Setting range : 03 to 22(h) 
STN-H(upper digit address): 0 to F(h) 
STN-L(lower digit address): 0 to F(h) 
00h is set as a 
factory default 
STN-H 
STN-L 
(Note) (h) indicates hexadecimal. 
 
Set the station address in hexadecimal. 
For example, if the address value is 28, it is ‘1C’ (h) when converted to 
hexadecimal.    Therefore, set as follows:   
              STN-H side: ‘1’ 
              STN-L side: ‘C’ 
For decimal-hexadecimal conversion, refer to "Appendix D 
Decimal-hexadecimal conversion table."