Mitsubishi q64rd, User Manual

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MELSEC-Q
7 ONLINE MODULE CHANGE
7.4.2 Range reference table (Q64RD-G)
The range reference tables for the Q64RD-G are given below.
Address (Decimal)
CH1 CH2 CH3 CH4
Description Reference value
160 184 208 232 3-wire type factory default offset value (L)
161 185 209 233 3-wire type factory default offset value (H)
Factory-set offset digital value
4
(theoretical value: 1E2FEE
H
)
162 186 210 234 3-wire type factory default gain value (L)
163 187 211 235 3-wire type factory default gain value (H)
Factory-set gain digital value
4
(theoretical value: 5A8FCA
H
)
164 188 212 236 3-wire type User range setting offset value (L)
165 189 213 237 3-wire type User range setting offset value (H)
Digital value*2 for user-set offset value
2
166 190 214 238 3-wire type User range settings gain value (L)
167 191 215 239 3-wire type User range settings gain value (H)
Digital value*3 for user-set gain value
3
168 192 216 240
3-wire type User range settings offset resistance value
(L)
169 193 217 241 (H)
Resistance value for user-set offset set temperature
( 10
-2
)
1
170 194 218 242
3-wire type User range settings gain resistance value
(L)
171 195 219 243 (H)
Resistance value for user-set gain set temperature
( 10
-2
)
1
172 196 220 244 4-wire type factory default offset value (L)
173 197 221 245 4-wire type factory default offset value (H)
Factory-set offset digital value
4
(theoretical value: 1E2FEE
H
)
174 198 222 246 4-wire type factory default gain value (L)
175 199 223 247 4-wire type factory default gain value (H)
Factory-set gain digital value
4
(theoretical value: 5A8FCA
H
)
176 200 224 248 4-wire type User range setting offset value (L)
177 201 225 249 4-wire type User range setting offset value (H)
Digital value*2 for user-set offset value
2
178 202 226 250 4-wire type User range settings gain value (L)
179 203 227 251 4-wire type User range settings gain value (H)
Digital value*3 for user-set gain value
3
180 204 228 252
4-wire type User range settings offset resistance value
(L)
181 205 229 256 (H)
Resistance value for user-set offset temperature ( 10
-2
)
1
182 206 230 254
4-wire type User range settings gain resistance value
(L)
183 207 231 255 (H)
Resistance value for user-set gain temperature ( 10
-2
)
1
1: Refer to Appendix 1 for the reference resistance values of the platinum temperature-measuring resistors.
2: Use the following expression to calculate the theoretical value of the digital value.
Digital value = User range settings offset resistance value 1.51336
3: Use the following expression to calculate the theoretical value of the digital value.
Digital value = User range settings gain resistance value 1.51336
4: Refer to the following example.
(Example) The following values (theoretical values) are set when user offset/gain adjustment is made at the
offset set temperature of -200 and the gain set temperature of 850 with a Pt100 type platinum
temperature-measuring resistor connected.
Value type Set temperature
Reference resistance
value
Set value
(
10
-2
)
Input value
Offset value -200.0°C 18.52 1852 1852 197.835 = 366390 (theoretical value : 59736
H
)
Gain value 850.0°C 390.48 39048 39048 197.835 = 7725061 (theoretical value : 75E005
H
)