Basic Documentation

21 / 26
Siemens RWD Primary Controls Modbus Interface CB1P3099en_01
Building Technologies RWD Parameters & Addresses 27.10.2009
RWD
Parameter
Addresses
RWD
Parameters
Data Format Detailed Descriptions & Data Interpretation
40157 * XDZ_H3 IEEE754 Offset for H3
40159 XP_ind IEEE754 P Band for Ind Y
40161 XP1 IEEE754 P Band for Heating 1
40163 XP1_cas IEEE754 P Band for Cascade Heating 1
40165 XP2 IEEE754 P Band for Heating 2
40167 XP3_cas IEEE754 P Band for Cascade Cooling 1
40169 XP_3P IEEE754 P Band for 3P
(Used in RWD82,
application no = 30 to 39 and 70 to 79)
40171 Y1_max IEEE754 Max Output for Y1
40173 Y1_min IEEE754 Min Output for Y1
40175 Y2_max IEEE754 Max output for Y2
40177 Y2_min IEEE754 Min output for Y2
40179
#
GetRWDReset IEEE754 Reset RWD62 & RWD34 only
- not recommended in normal operation
- Write 12 (0x0C) to reset RWD32/62/68/82
- Write 167 (0xA7) to reset RWD34/44/45
40181 * SD1_RWD32S IEEE754 Switching differential of Q1.
If TempUnit = C,
2 to 20 representing 2K to 20K respectively
If the TempUnit is F,
4 to 40 representing 4 ℉ to 40 ℉ respectively
40183 * SD2_RWD32S IEEE754 Switching differential of Q2.
If the TempUnit = C,
1 to 10 representing 1K to 10K respectively
If the TempUnit is F,
2 to 20 representing 2 ℉ to 20 ℉ respectively
40185 * MinOffTime1 IEEE754 The minimum off time of Q1
Range is from 0 up to 900 seconds
(@ 30 seconds each step)
40187 * MinOffTime2 IEEE754 The minimum off time of Q2
Range is from 0 up to 900 seconds
(@ 30 seconds each step)
40189 * T_C IEEE754 Minimum charging temperature
If the TempUnit = C,
0: OFF
30 to 90: 30 ℃ to 90 ℃
If the TempUnit is F,
0: OFF
86 to 194: 86 ℉ to 194 ℉
40191 * T_Max1 IEEE754 The maximum temperature of tank 1
If the TempUnit = C,
0: OFF
30 to 130: 30 ℃ to 130 ℃
If the TempUnit is F,
0: OFF
86 to 266: 86 ℉ to 266 ℉
40193 * T_Max2 IEEE754 The maximum temperature of tank 2
If the TempUnit = C,
0: OFF