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7 ONLINE MODULE CHANGE
7.4 Range Reference Table
7.4.1 Range reference table (Q64RD)
Address (Decimal)
CH1
CH2
CH3
CH4
160
184
208
232
161
185
209
233
162
186
210
234
163
187
211
235
164
188
212
236
165
189
213
237
166
190
214
238
167
191
215
239
168
192
216
240
169
193
217
241
170
194
218
242
171
195
219
243
172
196
220
244
173
197
221
245
174
198
222
246
175
199
223
247
176
200
224
248
177
201
225
249
178
202
226
250
179
203
227
251
180
204
228
252
181
205
229
256
182
206
230
254
183
207
231
255
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
3: Use the following expression to calculate the theoretical value of the digital value.
Digital value = User range settings gain resistance value
4: There are two identical areas consecutively. (Buffer memory addresses 160, 161 both have the 3-wire type CH. 1 factory default offset values.) Set the
same value in each area.
(Example) The following values (theoretical values) are set when user offset/gain adjustment is made at the
offset set temperature of -200
temperature-measuring resistor connected.
Value type
Set temperature
Offset value
-200.0°C
Gain value
850.0°C
7 - 35
The range reference tables for the Q64RD are given below.
Description
3-wire type factory default offset value
3-wire type factory default offset value
3-wire type factory default gain value
3-wire type factory default gain value
3-wire type User range setting offset value
3-wire type User range setting offset value
3-wire type User range settings gain value
3-wire type User range settings gain value
3-wire type User range settings offset resistance value
3-wire type User range settings gain resistance value
4-wire type factory default offset value
4-wire type factory default offset value
4-wire type factory default gain value
4-wire type factory default gain value
4-wire type User range setting offset value
4-wire type User range setting offset value
4-wire type User range settings gain value
4-wire type User range settings gain value
4-wire type User range settings offset resistance value
4-wire type User range settings gain resistance value
1.51336
1.51336
and the gain set temperature of 850
Reference resistance
value
18.52
390.48
4
Factory-set offset digital value (theoretical value: 3B1D
4
Factory-set offset digital value (theoretical value: 3B1D
4
Factory-set gain digital value (theoretical value: B158
4
Factory-set gain digital value (theoretical value: B158
4
Digital value*2 for user-set offset value
4
Digital value*2 for user-set offset value
4
Digital value*3 for user-set gain value
4
Digital value*3 for user-set gain value
Resistance value for user-set offset set temperature
(L)
-2
(
10
(H)
Resistance value for user-set gain set temperature
(L)
-2
(
10
(H)
4
Factory-set offset digital value (theoretical value: 3B1D
4
Factory-set offset digital value (theoretical value: 3B1D
4
Factory-set gain digital value (theoretical value: B1518
4
Factory-set gain digital value (theoretical value: B1518
4
Digital value*2 for user-set offset value
4
Digital value*2 for user-set offset value
4
Digital value*3 for user-set gain value
4
Digital value*3 for user-set gain value
Resistance value for user-set offset set temperature (
(L)
(H)
(L)
Resistance value for user-set gain set temperature (
(H)
-2
(
)
Set value
10
1852
1852
39048
39048
MELSEC-Q
Reference value
2
2
3
3
1
)
1
)
2
2
3
3
with a Pt100 type platinum
Input value
1.51336 = 2802 (theoretical value :AF2
1.51336 = 59093 (theoretical value :F6D5
)
H
)
H
)
H
)
H
)
H
)
H
)
H
)
H
-2
1
10
)
-2
1
10
)
)
H
)
H
7 - 35
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