6.5 SX Bus Interface Card
6-75
Chap. 6
CONTROL OPTIONS
6.5.2.2 Specifications
The system will not operate correctly if the switches (RSW1 and RSW2) on this option are not set properly.
Read the instruction below and set them accordingly.
Be sure to power off the inverter before setting the switches (RSW1 and RSW2) on this option.
Table 6.5.1 Hardware Specifications
Item Specifications
Name SX Bus Interface Option
Transmission specifications SX-bus slave, I/O transmission
Transmission speed 25 Mbps
Number of words occupied
in transmission
Selected by the function code U11 "Transmission format selection"
U11=0: Standard format (16 words 8W+8W)
U11=1: UPAC compatible format (51 words 29W+22W)
U11=2: Monitoring format (16 words 4W+12W)
U11=3: Standard format 2 (set by 485No) (16 words 8W+8W)
Terminal/bus cable IN, OUT/SX bus dedicated cable *NP1C-P3(0.3 m) to NP1C-25(25 m)
Rotary switches RSW1, 2 Station address setting. You can assign any station address from 1 to 238.
Status display LED RUN,
ERR
Displays the status of the self station (operation and error) with LEDs.
(1) Rotary switches RSW1 and RSW2
Set the station address using the rotary switches RSW1 and RSW2 on the option board. In the
hexadecimal display, "RSW1" represents the upper 4 bits and "RSW2" represents the lower 4 bits. For the
SX bus station address, read it in decimal values.
Example) Station address 194 is C2(h) and set RSW1=C and RSW2=2.
* Set the same SX bus station address set in the MICREX-SX
system definition. Since the address assigned by MICREX-SX
is used as the actual SX bus station address, it may be
different from the setting value of this rotary switch.
(You can check the address with the function code U13 "SX
bus station address monitor".)
* When two or more cards are used, do not allocate the same SX
bus station address to multiple stations.
* The factory default is RSW1=0 and RSW2=0 (address = 00).
* The RSW1 and RSW2 settings are recognized upon "power
on" and "reset" of the SX bus (MICREX-SX).
* When RSW1=0 and RSW2=0 (station address＝00) are set,
communication is only possible when there is no degenerate
system start-up. (If there is degenerate system start-up,
MICREX-SX will encounter a heavy alarm and the address
specified in the system definition of MICREX-SX is used.)
* Even while the SX bus communication is established, and if a
slave with an address duplicated with another slave on the SX
bus is connected, the slave which has already established
communication does not encounter an error and continues
operation.
Figure 6.5.1
4
C
2
6
5
D
3
B
4
C
2
6
5
D
3
B
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