ACS-20B(W)-MRTU User Manual
Version 1.1
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5.1 Modbus Register Table
Please refer to table 5-2 and table 5-3 for the Modbus Input Registers (3xxxx) and Modbus
Holding Registers (4xxxx). Settings written to the Modbus holding registers are all volatile for
ACS-20B(W)-MRTU. The values will go back to the default or previous ones after power cycling.
The settings can be kept (non-volatile) by the FC100 commands in section 5.2.
5.1.1 Modbus Input Registers
The Modbus Input Registers are listed in Table 5-2. They are read-only registers.
Table 5-2: Modbus Input Registers (3xxxx)
Address
(0-index)
Description
R/W
260 (0x0104)
Sensing Year (2000~2200) (The last IR sensing RTC time after
power-on)
R
261 (0x0105)
Sensing Month (1~12) (The last IR sensing RTC time after power-on)
R
262 (0x0106)
Sensing Day (1~31) (The last IR sensing RTC time after power-on)
R
263 (0x0107)
Sensing Hour (0~23) (The last IR sensing RTC time after power-on)
R
264 (0x0108)
Sensing Minute (0~59) (The last IR sensing RTC time after power-on)
R
265 (0x0109)
Sensing Second (0~59) (The last IR sensing RTC time after power-on)
R
266 (0x010A)
Sensing Day of Week (0~6: Sun.~Sat.) (The last IR sensing RTC time
after power-on)
R
267 (0x010B)
Quantity of stored IR sensing records (0~1600)
R
268 (0x010C)
IR Sensing status (0: not sensing, 1: sensing / toggle mode(always 1))
R
270 (0x010E)
Current RTC Year (2000~2200)
R
271 (0x010F)
Current RTC Month (1~12)
R
272 (0x0110)
Current RTC Day (1~31)
R
273 (0x0111)
Current RTC Hour (0~23)
R
274 (0x0112)
Current RTC Minute (0~59)
R
275 (0x0113)
Current RTC Second (0~59)
R
276 (0x0114)
Current RTC Day of Week (0~6: Sun.~Sat.)
R