List of Modbus Registers | iC Knowledge Base

Decimal Address	Hex Address	Register Name	Access	Description
0	0x000	VERSION AND MODULE TYPE	Read	LSB – type (device ID), MSB - FW version / 10
1	0x001	MODULE ADDRESS	Read/write	Modbus address setting via Modbus from 1 to 255
2	0x002	BAUD RATE AND PROTOCOL	Read-only	Not used. Use registers from 135 to 138
3	0x003	COUNTER OF RECEIVED FRAMES (32-Bit)	Read-only	Default state is 0. Counting the received Modbus frames from the last powering up or module reset.
4	0x004	COUNTER OF RECEIVED FRAMES (32-Bit)	Read-only
5	0x005	COUNTER OF FRAMES WITH ERROR (32-Bit)	Read-only	Default state is 0. Counting the incorrect received Modbus frames from the last powering up or module reset.
6	0x006	COUNTER OF FRAMES WITH ERROR (32-Bit)	Read-only
7	0x007	COUNTER OF SENT FRAMES (32-Bit)	Read-only	Default state is 0. Counting the sent Modbus frames from the last powering up or module reset.
8	0x008	COUNTER OF SENT FRAMES (32-Bit)	Read-only
9	0x009	Reserved	N/a	N/a
10	0x00A	Reserved	N/a	N/a
11	0x00B	UP TIME	Read-only	This 32-bit register contains module counting time in seconds from the last powering up or module reset.
12	0x00C	UP TIME	Read-only
13-134	0x00D-0x086	Reserved	N/a	N/a
135	0x087	BAUD RATE	Read/write	Transmission speed is defined by the user calculated using the formula: baud rate = register value ⋅ 10. The value is considered only when sections 1, 2, and 3 of S3 switch are in the OFF position. The default value is 7680 (76800 bps).
136	0x088	STOP BitS	Read/write	Supported values are 1 and 2. The default value is 1.
137	0x089	DATA BitS	Read/write	Supported values are 7 and 8. The default value is 8.
138	0x08A	PARITY Bit	Read/write	Parity bit. The default value is 0 (no parity). Allowed values: 0 (default): none, 1: odd, 2: even
139	0x08B	RESPONSE DELAY	Read/write	Delay in ms before sending the response. The default value is 0.
140-299	0x08C-0x12B	Reserved	N/a	N/a
300	0x12C	SYSTEM CONFIGURATION	Read/write	Actuator model
301-1103	0x12D-0x3EB	Reserved	N/a	N/a
1005	0x3ED	TYPE OF CONTROL	Read/write	Select the actuator type of control: 0: Modbus (DIP switch disabled) 1: 10 V (DIP switch disabled) 2: 2-10 V (DIP switch disabled) 3: 0 5 V (DIP switch disabled) 4: 5-10 V (DIP switch disabled) 5: 2-6 V (DIP switch disabled) 6: 6-10 V (DIP switch disabled) 7 (default): selected by DIP switch
1006	0x3EE	Direct/Reverse & Failsafe Direction Setting	Read/write	Select the actuator's action (direct or reverse) and fail-safe direction: Bit 0: direct action (1-default); reverse action (0) Bit 1: fail-safe DOWN (1); fail-safe UP (0-default)
1007	0x3EF	FORCE CALIBRATION	Read/write	Force calibration (valve stroke learning); 1 - force calibration (automatic reset of value after calibration)
1008	0x3F0	JUMPER ENABLE (ER board)	Read/write	Fail-safe jumper enable setting: 0 (default) - jumper enabled, 1 - jumper disabled
1009	0x3F1	CHANGEOVER SETTING	Read/write	Temperature loops action selection: 0 (default): heating 1: cooling 2: automatic (according ∆T)
1010	0x3F2	TEMPERATURE PROBE SELECTION	Read/write	Temperature probe selection: 0 (default): supply temperature (T1) 1: return temperature (T2) 2: ∆T
1011-1012	0x3F3 –0x3F4	Reserved	N/a	N/a
1013	0x3F5	FUNCTIONS ENABLE	Read/write	Actuator function setting (0-disable - default): Bit 0: enable temperature control function Bit 1: enable min. ΔT limitation function Bit 2: enable function max. temperature limitation function Bit 3: enable function min.temperature limitation function
1014	0x3F6	FUNCTIONS STATUS	Read-only	Actuator function setting: Bit 0: function temperature control activated (1-active) Bit 1: function temperature ΔT max. limit activated Bit 2: function temperature max. limit activated Bit 3: function temperature min. limit activated
1015	0x3F7	% Minimum Opening Valve (Temperature loops)	Read/write	Set minimum opening valve when the temperature loops and limits are active.
1016	0x3F8	DIP Switch & Push Button & Jumper STATUS	Read-only	DIP switches and jumper status: Bit 0: DIP1 status: "Direct Action (OFF) - Reverse Action (ON)" Bit 1: DIP2 status: "Modulating Control (OFF) - Not Used (ON)" Bit 2: DIP3 status: "Normal Operation (OFF) - Bootloader (ON)" Bit 3: DIP4 status: "0-10 V" (OFF) - "2-10 V" (ON)" Bit 4: DIP5 status: "Not Used" Bit 5: DIP6 status: "Voltage Control (OFF)" - Current Control (ON)" Bit 6: Push button: status: "Active" (Pressed) - Not Active (Released) Bit 7: Jumper status: "Fail-safe Down" (Jumper Insert) -" Fail-safe UP"
1017	0x3F9	Reserved	N/a	N/a
1018	0x3FA	VALVE STROKE (mm*100)	Read/write	Valve stroke (mm*100) - after calibration phase
1019	0x3FB	OVERVOLTAGE EVENTS (24 V AC > 20%) (230 V > 10%)	Read/write	Overvoltage events (24 V AC > 20%) (230 V > 10%)
1020	0x3FC	UNDERVOLTAGE EVENTS (V AC < 20%) (230 V < 10%)	Read/write	Undervoltage events (V AC < 20%) (230 V < 10%)
1021	0x3FD	FULLY OPEN EVENTS	Read/write	Fully opened events
1022	0x3FE	FULLY CLOSE EVENTS	Read/write	Fully closes events
1023	0x3FF	UNEXPECTED STALL CONDITION EVENTS (within calculated stroke)	Read/write	Unexpected stall condition events (within calculated stroke)
1024	0x400	UNEXPECTED STALL CONDITION EVENTS (outside calculated stroke)	Read/write	Unexpected stall condition events (outside calculated stroke)
1025	0x401	VALVE STROKE ERROR > max. (60 mm)	Read/write	Valve stroke error > max. (60 mm)
1026	0x402	VALVE STROKE ERROR < min. (5 mm)	Read/write	Valve stroke error < min. (5 mm)
1027	0x403	ACTUATOR OPERATING MODE	Read-only	Actuator operating mode (0 - not active) (1- active): Bit 0: Normal Running Bit 1: Init Position Phase Bit 2: Learning Phase Bit 3: Fail Safe Phase Bit 4: Error Phase Bit 5: Manual Override Phase
1028	0x404	ERROR TYPE	Read-only	Error type: (0- no error) (1- error): Bit 0: T1 temperature sensor error (out of range) Bit 1: T1 temperature sensor error (out of range) Bit 2: spare Bit 3: spare Bit 4: valve stroke < 5 mm Bit 5: valve stroke > 60 mm Bit 6: unexpected stall condition events (within calculated stroke) Bit 7: unexpected stall condition events (outside calculated stroke Bit 8: undervoltage error Bit 9: overvoltage error Bit 10: time clock error
1029-1032	0x405-0x408	Reserved	N/a	N/a
1033	0x409	ACTUATOR RESET	Read/write	Force actuator reset (1)
1034	0x40A	BMS COMMAND	Read/write	BMS command (0-100%)*10
1035-1036	0x40B-0x40C	Reserved	N/a	N/a
1037	0x40D	FEEDBACK	Read-only	Actuator position (0-100%), valve position (0-100%)*10
1038-1099	0x40E-0x44B	Reserved	N/a	N/a
1100	0x44C	SET HEATING ∆T CONTROL	Read/write	Set heating ∆T control (°C*10)
1101	0x44D	SET COOLING ∆T CONTROL	Read/write	Set cooling ∆T control (°C*10)
1102	0x44E	SET HEATING SUPPLY TEMPERATURE	Read/write	Set heating supply temperature (°C*10)
1103	0x44F	SET COOLING SUPPLY TEMPERATURE	Read/write	Set cooling supply temperature (°C*10)
1104	0x450	SET HEATING RETURN TEMPERATURE	Read/write	Set heating return temperature (°C*10)
1105	0x451	SET COOLING RETURN TEMPERATURE	Read/write	Set cooling return temperature (°C*10)
1106	0x452	SET HEATING ∆T LIMITATION	Read/write	Set heating ∆T limitation (°C*10)
1107	0x453	SET COOLING ∆T LIMITATION	Read/write	Set cooling ∆T limitation (°C*10)
1108	0x454	SET HEATING SUPPLY TEMPERATURE LIMIT	Read/write	Set heating supply temperature limit (°C*10)
1109	0x455	SET COOLING SUPPLY TEMPERATURE LIMIT	Read/write	Set cooling supply temperature limit (°C*10)
1110	0x456	SET HEATING RETURN TEMPERATURE LIMIT	Read/write	Set heating return temperature limit (°C*10)
1111	0x457	SET COOLING RETURN TEMPERATURE LIMIT	Read/write	Set cooling return temperature limit (°C*10)
1112	0x458	Reserved	N/a	N/a
1113	0x459	Reserved	N/a	N/a
1114	0x45A	SUPPLY TEMPERATURE VALUE	Read-only	Supply temperature value (°C*10)
1115	0x45B	RETURN TEMPERATURE VALUE	Read-only	Return temperature value (°C*10)
1116	0x45C	∆T VALUE (S1 – S2)	Read-only	∆T value (T1 – T2) (°C*10)
1117-1181	0x45D-0x49D	Reserved	N/a	N/a
1181	0x49D	CLOCK MINUTES	Read/write	Clock minutes
1182	0x49E	CLOCK HOURS	Read/write	Clock hours
1183	0x49F	CLOCK DAY	Read/write	Clock day
1184	0x4A0	CLOCK MONTH	Read/write	Clock month
1185	0x4A1	CLOCK YEAR	Read/write	Clock year
1186	0x4A2	RESET FOR EEPROM INITIALIZATION	Read/write	Reset for EEPROM initialization
1187-1191	0x4A3-0x4A7	Reserved	N/a	N/a
1192	0x4A8	OUT LOOP BMS	Read-only	Output loop BMS (*10)
1193 - 1196	0x4A9 – 0x4AC	Reserved	N/a	N/a
1197	0x4AD	OUT LOOP T CONTROL	Read-only	Output loop T control (*10)
1198	0x4AE	OUT LOOP T LIMITS	Read-only	Output loop T limits (*10)
1199	0x4AF	OUT LOOP "ACTIVE"	Read-only	Output loop "active" (*10)
1200-1229	0x4B0-0x4CD	Reserved	N/a	N/a
1230	0x4CE	LOOP TYPE P, P+I, P+I+D (∆T heating loop)	Read/write	Loop type P, P+I, P+I+D (∆T heating loop)
1231	0x4CF	DERIVATIVE TIME (gain) (∆T heating loop)	Read/write	Derivative time (gain) (∆T heating loop)
1232	0x4D0	INTEGRAL TIME (min.) (∆T heating loop)	Read/write	Integral time (min.) (∆T heating loop)
1233	0x4D1	PROPORTIONAL BAND ∆T (°C*10) (∆T heating loop)	Read/write	Proportional band ∆T (°C*10) (∆T heating loop)
1234	0x4D2	LOOP TYPE P, P+I, P+I+D (∆T cooling loop)	Read/write	Loop type P, P+I, P+I+D (∆T cooling loop)
1235	0x4D3	DERIVATIVE TIME (gain) (∆T cooling loop)	Read/write	Derivative time (gain) (∆T cooling loop)
1236	0x4D4	INTEGRAL TIME (min.) (∆T cooling loop)	Read/write	Integral time (min.) (∆T cooling loop)
1237	0x4D5	PROPORTIONAL BAND ∆T (°C*10) (∆T cooling loop)	Read/write	Proportional band ∆T (°C*10) (∆T cooling loop)
1238	0x4D6	LOOP TYPE P, P+I, P+I+D (T heating supply loop)	Read/write	Loop type P, P+I, P+I+D (T heating supply loop)
1239	0x4D7	DERIVATIVE TIME (gain) (T heating supply loop)	Read/write	Derivative time (gain) (T heating supply loop)
1240	0x4D8	INTEGRAL TIME (min.) (T heating supply loop)	Read/write	Integral time (min.) (T heating supply loop)
1241	0x4D9	PROPORTIONAL BAND ∆T (°C*10) (T heating supply loop)	Read/write	Proportional band ∆T (°C*10) (T heating supply loop)
1242	0x4DA	LOOP TYPE P, P+I, P+I+D (T cooling supply loop)	Read/write	Loop type P, P+I, P+I+D (T cooling supply loop)
1243	0x4DB	DERIVATIVE TIME (gain) (T cooling supply loop)	Read/write	Derivative time (gain) (T cooling supply loop)
1244	0x4DC	INTEGRAL TIME (min.) (T cooling supply loop)	Read/write	Integral time (min.) (T cooling supply loop)
1245	0x4DD	PROPORTIONAL BAND ∆T (°C*10) (T cooling supply loop)	Read/write	Proportional band ∆T (°C*10) (T cooling supply loop)
1246	0x4DE	LOOP TYPE P, P+I, P+I+D (T heating Return loop)	Read/write	Loop type P, P+I, P+I+D (T heating return loop)
1247	0x4DF	DERIVATIVE TIME (gain) (T heating Return loop)	Read/write	Derivative time (gain) (T heating return loop)
1248	0x4E0	INTEGRAL TIME (min.) (T heating Return loop)	Read/write	Integral time (min.) (T heating return loop)
1249	0x4E1	PROPORTIONAL BAND ∆T (°C*10) (T heating Return loop)	Read/write	Proportional band ∆T (°C*10) (T heating return loop)
1250	0x4E2	LOOP TYPE P, P+I, P+I+D (T cooling Return loop)	Read/write	Loop type P, P+I, P+I+D (T cooling return loop)
1251	0x4E3	DERIVATIVE TIME (gain) (T cooling Return loop)	Read/write	Derivative time (gain) (T cooling return loop)
1252	0x4E4	INTEGRAL TIME (min.) (T cooling Return loop)	Read/write	Integral time (min.) (T cooling return loop)
1253	0x4E5	PROPORTIONAL BAND ∆T (°C*10) (T cooling Return loop)	Read/write	Proportional band ∆T (°C*10) (T cooling return loop)
1254	0x4E6	LOOP TYPE P, P+I, P+I+D (∆T heating loop limit)	Read/write	Loop type P, P+I, P+I+D (∆T heating loop limit)
1255	0x4E7	DERIVATIVE TIME (gain) (∆T heating loop limit)	Read/write	Derivative time (gain) (∆T heating loop limit)
1256	0x4E8	INTEGRAL TIME (min.) (∆T heating loop limit)	Read/write	Integral time (min.) (∆T heating loop limit)
1257	0x4E9	PROPORTIONAL BAND ∆T (°C*10) (∆T heating loop limit)	Read/write	Proportional band ∆T (°C*10) (∆T heating loop limit)
1258	0x4EA	LOOP TYPE P, P+I, P+I+D (∆T cooling loop limit)	Read/write	Loop type P, P+I, P+I+D (∆T cooling loop limit)
1259	0x4EB	DERIVATIVE TIME (gain) (∆T cooling loop limit)	Read/write	Derivative time (gain) (∆T cooling loop limit)
1260	0x4EC	INTEGRAL TIME (min.) (∆T cooling loop limit)	Read/write	Integral time (min.) (∆T cooling loop limit)
1261	0x4ED	PROPORTIONAL BAND ∆T (°C*10) (∆T cooling loop limit)	Read/write	Proportional band ∆T (°C*10) (∆T cooling loop limit)
1262	0x4EE	LOOP TYPE P, P+I, P+I+D (T heating supply loop limit)	Read/write	Loop type P, P+I, P+I+D (T heating supply loop limit)
1263	0x4EF	DERIVATIVE TIME (gain) (T heating supply loop limit)	Read/write	Derivative time (gain) (T heating supply loop limit)
1264	0x4F0	INTEGRAL TIME (min.) (T heating supply loop limit)	Read/write	Integral time (min.) (T heating supply loop limit)
1265	0x4F1	PROPORTIONAL BAND ∆T (°C*10) (T heating supply loop limit)	Read/write	Proportional band ∆T (°C*10) (T heating supply loop limit)
1266	0x4F2	LOOP TYPE P, P+I, P+I+D (T cooling supply loop limit)	Read/write	Loop type P, P+I, P+I+D (T cooling supply loop limit)
1267	0x4F3	DERIVATIVE TIME (gain) (T cooling supply loop limit)	Read/write	Derivative time (gain) (T cooling supply loop limit)
1268	0x4F4	INTEGRAL TIME (min.) (T cooling supply loop limit)	Read/write	Integral time (min.) (T cooling supply loop limit)
1269	0x4F5	PROPORTIONAL BAND ∆T (°C*10) (T cooling supply loop limit)	Read/write	Proportional band ∆T (°C*10) (T cooling supply loop limit)
1270	0x4F6	LOOP TYPE P, P+I, P+I+D (T heating Return loop limit)	Read/write	Loop type P, P+I, P+I+D (T heating return loop limit)
1271	0x4F7	DERIVATIVE TIME (gain) (T heating Return loop limit)	Read/write	Derivative time (gain) (T heating return loop limit)
1272	0x4F8	INTEGRAL TIME (min.) (T heating Return loop limit)	Read/write	Integral time (min.) (T heating return loop limit)
1273	0x4F9	PROPORTIONAL BAND ∆T (°C*10) (T heating Return loop limit)	Read/write	Proportional band ∆T (°C*10) (T heating return loop limit)
1274	0x4FA	LOOP TYPE P, P+I, P+I+D (T cooling Return loop limit)	Read/write	Loop type P, P+I, P+I+D (T cooling return loop limit)
1275	0x4FB	DERIVATIVE TIME (gain) (T cooling Return loop limit)	Read/write	Derivative time (gain) (T cooling return loop limit)
1276	0x4FC	INTEGRAL TIME (min.) (T cooling Return loop limit)	Read/write	Integral time (min.) (T cooling return loop limit)
1277	0x4FD	PROPORTIONAL BAND ∆T (°C*10) (T cooling Return loop limit)	Read/write	Proportional band ∆T (°C*10) (T cooling return loop limit)

List of Modbus registers