TPM EasyPAC, User Manual, Page: 69 / 223

TPM
EasyPAC User Manual
69
Ring_0 AI/O and Counter
IP
AI COUNTER MODBUS AO MODBUS
%I
Input Registers
%Q
Holding Registers
DEC HEX DEC HEX
48
%IW 193 %ID 193 0 0 %QW 193 0 0
%IW 195 1 1 %QW 195 1 1
%IW 197 %ID 197 2 2 %QW 197 2 2
%IW 199 3 3 %QW 199 3 3
%IW 201 %ID 201 4 4 %QW 201 4 4
%IW 203 5 5 %QW 203 5 5
%IW 205 %ID 205 6 6 %QW 205 6 6
%IW 207 7 7 %QW 207 7 7
Table 5-6: table of Ring_0 AI/O and counter
IP: “48” Available IP for AIO/PIO is ranged from 48 to 63 and the total number is 16.
The following data types are available with the same slave IP: 8 Channel AI (%IW 193 ~ 207), 8 Ch. AO
(%QB 193 ~ 207) and 4 Channel PI Counter (%ID 193 ~ 205).
The data type of AIO is WORD (Hex 0x0000~0xFFFF). The engineering unit can be calculated. When the
gain of Ch.0 of AI is ±10V, %IW 193 = 0x0000 (-10V) ~ 0xFFFF (+10V)
The data type of PIO counter module is DWORD (Hex 0x00000000~0xFFFFFFFF).
In the case of 108-P120, different modes can be set as described in the following:
1. Counter: Count the no. of pulses.
2. Frequency: Measure the frequency of the input pulse (Time is 0.1s~100s).
For example, When Time is set to 1s and gets 1000 pulse from IN0, %ID 193 = 0x000003E8. The freq. is
1 KHz.
3. Period: Measure the period of the incoming pulse in the unit of ns.
For example, when the input pulse is with 2ms width in IN0, %ID 193 = 0x001E8480, period is
2000000ns. The freq. is 500 Hz.
4. GT: Measure the ON/Off Time in the Gate, sampling period is 0.1ms.
For example, the signal in the gate is 2 seconds, 2000ms/0.1ms= 20000, %ID 193 = 0x00004E20.
5. GC: Only 2 channels are available in this mode:
Channel 0 Channel 1
IN0: Count0 IN2: Count1
IN1: Gate0 IN3: Gate1
IN1 and IN3: Measure the Gate input time
IN0 and IN2: Measure the pulse input Count