JUMO diraTRON/diraVIEW compact controller

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

coherence-checked

Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.

point	address (0-based)	type	scale
Measured value offset	6080	F32LE	1
Filter time constant	6082	F32LE	1
1. analog flag	6912	F32LE	1
2. analog flag	6923	F32LE	1
1. digital flag	6934	U16	1
2. digital flag	6935	U16	1
Timer time (timer value)	6948	U32BE	1
Limit value monitoring 1 - Limit value	7035	F32LE	1
Limit value monitoring 1 - Limit value 2	7037	F32LE	1
Limit value monitoring 2 - Limit value	7115	F32LE	1
Limit value monitoring 2 - Limit value 2	7117	F32LE	1
Limit value monitoring 3 - Limit value	7195	F32LE	1
Limit value monitoring 3 - Limit value 2	7197	F32LE	1
Limit value monitoring 4 - Limit value	7275	F32LE	1
Limit value monitoring 4 - Limit value 2	7277	F32LE	1
1. control structure	7936	U16	1
2. control structure	7937	U16	1
Xp1 proportional band	7938	F32LE	1
Xp2 proportional band	7940	F32LE	1
Tv1 derivative time	7942	F32LE	1
Tv2 derivative time	7944	F32LE	1
Tn1 reset time	7946	F32LE	1
Tn2 reset time	7948	F32LE	1
Cy1 cycle time	7950	F32LE	1
Cy2 cycle time	7952	F32LE	1
Xsh contact spacing	7954	F32LE	1
Xd1 switching differential	7956	F32LE	1
Xd2 switching differential	7958	F32LE	1
TT actuator time	7960	I16	1
Y0 working point	7961	I16	1
Y1 max. output value limit	7962	I16	1
Y1 min. output value limit	7963	I16	1
Tk1 min. relay-on time	7964	F32LE	1
Tk2 min. relay-on time	7966	F32LE	1
1. control structure	7968	U16	1
2. control structure	7969	U16	1
Xp1 proportional band	7970	F32LE	1
Xp2 proportional band	7972	F32LE	1
Tv1 derivative time	7974	F32LE	1
Tv2 derivative time	7976	F32LE	1
Tn1 reset time	7978	F32LE	1
Tn2 reset time	7980	F32LE	1
Cy1 cycle time	7982	F32LE	1
Cy2 cycle time	7984	F32LE	1
Xsh contact spacing	7986	F32LE	1
Xd1 switching differential	7988	F32LE	1
Xd2 switching differential	7990	F32LE	1
TT actuator time	7992	I16	1
Y0 working point	7993	I16	1
Y1 max. output value limit	7994	I16	1
Y1 min. output value limit	7995	I16	1
Tk1 min. relay-on time	7996	F32LE	1
Tk2 min. relay-on time	7998	F32LE	1
Number of program sections	8192	U16	1
Program time	8193	I16	1
Section 1 Setpoint value	8194	F32LE	1
Section 1 (reserved)	8196	F32LE	1
Section 1 Duration	8198	U32BE	1
Section 1 Operating contacts	8200	U16	1
Section 2 Setpoint value	8201	F32LE	1
Section 2 (reserved)	8203	F32LE	1
Section 2 Duration	8205	U32BE	1
Section 2 Operating contacts	8207	U16	1
Section 3 Setpoint value	8208	F32LE	1
Section 3 (reserved)	8210	F32LE	1
Section 3 Duration	8212	U32BE	1
Section 3 Operating contacts	8214	U16	1
Section 4 Setpoint value	8215	F32LE	1
Section 4 (reserved)	8217	F32LE	1
Section 4 Duration	8219	U32BE	1
Section 4 Operating contacts	8221	U16	1
Section 5 Setpoint value	8222	F32LE	1
Section 5 (reserved)	8224	F32LE	1
Section 5 Duration	8226	U32BE	1
Section 5 Operating contacts	8228	U16	1
Section 6 Setpoint value	8229	F32LE	1
Section 6 (reserved)	8231	F32LE	1
Section 6 Duration	8233	U32BE	1
Section 6 Operating contacts	8235	U16	1
Section 7 Setpoint value	8236	F32LE	1
Section 7 (reserved)	8238	F32LE	1
Section 7 Duration	8240	U32BE	1
Section 7 Operating contacts	8242	U16	1
Section 8 Setpoint value	8243	F32LE	1
Section 8 (reserved)	8245	F32LE	1
Section 8 Duration	8247	U32BE	1
Section 8 Operating contacts	8249	U16	1
Section 9 Setpoint value	8250	F32LE	1
Section 9 (reserved)	8252	F32LE	1
Section 9 Duration	8254	U32BE	1
Section 9 Operating contacts	8256	U16	1
Section 10 Setpoint value	8257	F32LE	1
Section 10 (reserved)	8259	F32LE	1
Section 10 Duration	8261	U32BE	1
Section 10 Operating contacts	8263	U16	1
Section 11 Setpoint value	8264	F32LE	1
Section 11 (reserved)	8266	F32LE	1
Section 11 Duration	8268	U32BE	1
Section 11 Operating contacts	8270	U16	1
Section 12 Setpoint value	8271	F32LE	1
Section 12 (reserved)	8273	F32LE	1
Section 12 Duration	8275	U32BE	1
Section 12 Operating contacts	8277	U16	1
Section 13 Setpoint value	8278	F32LE	1
Section 13 (reserved)	8280	F32LE	1
Section 13 Duration	8282	U32BE	1
Section 13 Operating contacts	8284	U16	1
Section 14 Setpoint value	8285	F32LE	1
Section 14 (reserved)	8287	F32LE	1
Section 14 Duration	8289	U32BE	1
Section 14 Operating contacts	8291	U16	1
Section 15 Setpoint value	8292	F32LE	1
Section 15 (reserved)	8294	F32LE	1
Section 15 Duration	8296	U32BE	1
Section 15 Operating contacts	8298	U16	1
Section 16 Setpoint value	8299	F32LE	1
Section 16 (reserved)	8301	F32LE	1
Section 16 Duration	8303	U32BE	1
Section 16 Operating contacts	8305	U16	1
Section 17 Setpoint value	8306	F32LE	1
Section 17 (reserved)	8308	F32LE	1
Section 17 Duration	8310	U32BE	1
Section 17 Operating contacts	8312	U16	1
Section 18 Setpoint value	8313	F32LE	1
Section 18 (reserved)	8315	F32LE	1
Section 18 Duration	8317	U32BE	1
Section 18 Operating contacts	8319	U16	1
Section 19 Setpoint value	8320	F32LE	1
Section 19 (reserved)	8322	F32LE	1
Section 19 Duration	8324	U32BE	1
Section 19 Operating contacts	8326	U16	1
Section 20 Setpoint value	8327	F32LE	1
Section 20 (reserved)	8329	F32LE	1
Section 20 Duration	8331	U32BE	1
Section 20 Operating contacts	8333	U16	1
Section 21 Setpoint value	8334	F32LE	1
Section 21 (reserved)	8336	F32LE	1
Section 21 Duration	8338	U32BE	1
Section 21 Operating contacts	8340	U16	1
Section 22 Setpoint value	8341	F32LE	1
Section 22 (reserved)	8343	F32LE	1
Section 22 Duration	8345	U32BE	1
Section 22 Operating contacts	8347	U16	1
Section 23 Setpoint value	8348	F32LE	1
Section 23 (reserved)	8350	F32LE	1
Section 23 Duration	8352	U32BE	1
Section 23 Operating contacts	8354	U16	1
Section 24 Setpoint value	8355	F32LE	1
Section 24 (reserved)	8357	F32LE	1
Section 24 Duration	8359	U32BE	1
Section 24 Operating contacts	8361	U16	1
Setpoint value 1	8468	F32LE	1
Setpoint value 2	8490	F32LE	1
Setpoint value 3	8512	F32LE	1
Setpoint value 4	8534	F32LE	1
Positive gradient	8705	F32LE	1
Negative gradient	8707	F32LE	1
Tolerance band	8709	F32LE	1
Value of the analog input 1	14080	F32LE	1
Value of the analog input 2	14090	F32LE	1
Value of the digital input 1	14241	U16	1
Value of the digital input 2	14251	U16	1
Value of the digital flag 1	18434	U16	1
Value of the digital flag 2	18484	U16	1
Prerun signal (active during lead time)	18696	U16	1
Timer output (active while timer is running; high or low, configurable)	18697	U16	1
Tolerance band signal	18698	U16	1
Timer status	18699	U16	1
End signal	18700	U16	1
Stop signal	18701	U16	1
Controller status	19214	U16	1
Autotuning active	19242	U16	1
Manual mode active	19243	U16	1
Manual mode active due to measuring range overflow or underflow	19244	U16	1
Controller cycle alarm	19245	U16	1
Output level alarm	19246	U16	1
Controller mode	19256	U16	1
Manual mode inhibited	19257	U16	1
Autotuning inhibited	19258	U16	1
Current section	21000	I16	1
Remaining section time	21001	I32BE	1
Remaining program time	21003	I32BE	1
Section run time	21009	U32BE	1
Program run time	21011	U32BE	1
Operating contacts	21029	U16	1
Status (operating mode) of the program generator	21030	U16	1
Automatic mode signal	21031	U16	1
Tolerance band signal	21032	U16	1
Fixed-setpoint controller signal	21033	U16	1
Program end signal	21034	U16	1
Program prerun signal (active during lead time)	21035	U16	1
Ramp end	21200	U16	1
Ramp tolerance band active	21201	U16	1
Setpoint no. (1 to 4)	21225	U16	1
Start of autotuning	21328	U16	1
Canceling autotuning	21329	U16	1
Change to manual mode	21330	U16	1
Change to automatic mode	21331	U16	1
Manual output level	21332	F32LE	1
Open actuator	21334	U16	1
Close actuator	21335	U16	1
Program start	21336	U16	1
Program abort	21337	U16	1
Program stop	21338	U16	1
Change to next section	21341	U16	1
Change to previous section	21342	U16	1
Timer start	21344	U16	1
Timer abort	21345	U16	1
Timer stop	21346	U16	1
Timer acknowledgement	21347	U16	1
Timer restart	21348	U16	1
Ramp restart	21349	U16	1
Ramp abort	21350	U16	1
Ramp stop	21351	U16	1
Acknowledgement of all limit value monitoring functions	21352	U16	1
Service signal acknowledgement	21353	U16	1
Function key, short	21354	U16	1
Function key, long	21355	U16	1
1. ST digital output	22272	U16	1
2. ST digital output	22273	U16	1
3. ST digital output	22274	U16	1
4. ST digital output	22275	U16	1
1. ST analog output	22276	F32LE	1
2. ST analog output	22278	F32LE	1
3. ST analog output	22280	F32LE	1
4. ST analog output	22282	F32LE	1
5. ST analog output	22284	F32LE	1
6. ST analog output	22286	F32LE	1
Adoption of the configuration values	27904	U16	1
Limit value monitoring functions	27984	U16	1
Timer	27985	U16	1
Digital outputs	27986	U16	1
Digital control signals	27987	U16	1
Digital inputs	27988	U16	1
External digital inputs	27989	U16	1
Controller outputs	27990	U16	1
Operating contacts	27991	U16	1
Logic results	27992	U16	1
Analog input (measured value)	28672	F32LE	1
Min. value	28674	F32LE	1
Max. value	28676	F32LE	1
Tara value	28678	F32LE	1
1. math result	28680	F32LE	1
2. math result	28682	F32LE	1
3. math result	28684	F32LE	1
4. math result	28686	F32LE	1
Controller setpoint value	28688	F32LE	1
Controller actual value	28690	F32LE	1
Control deviation	28692	F32LE	1
Output level display	28694	F32LE	1
1. setpoint value	28696	F32LE	1
2. setpoint value	28698	F32LE	1
3. setpoint value	28700	F32LE	1
4. setpoint value	28702	F32LE	1
Ramp end value	28704	F32LE	1
Current ramp setpoint value	28706	F32LE	1
1. ext. analog input	28708	F32LE	1
2. ext. analog input	28710	F32LE	1
1. analog flag	28712	F32LE	1
2. analog flag	28714	F32LE	1
Timer run time	28716	F32LE	1
Timer remaining running time	28718	F32LE	1
Timer value	28720	F32LE	1
Current section	28722	F32LE	1
Section end value	28724	F32LE	1
(reserved)	28726	F32LE	1
Remaining section time	28728	F32LE	1
Remaining program time	28730	F32LE	1
Section run time	28732	F32LE	1
Program run time	28734	F32LE	1
Current program setpoint value	28736	F32LE	1
(reserved)	28738	F32LE	1
1. ST analog output	28740	F32LE	1
2. ST analog output	28742	F32LE	1
3. ST analog output	28744	F32LE	1
4. ST analog output	28746	F32LE	1
5. ST analog output	28748	F32LE	1
6. ST analog output	28750	F32LE	1
Analog output	28752	F32LE	1
Service counter	28754	F32LE	1
Operating time	28756	F32LE	1

link settings as documented (unverified): RTU/TCP; baud 9600/19200/38400/115200; FC 03,04,06,16; Simultaneous access by several Modbus masters (clients) is not supported by the device (server).

bench facts as documented (unverified)

terminals	RxD/TxD+ (terminal 11), RxD/TxD- (terminal 12)
termination	terminating resistors are required at the beginning and end of an RS485 transmission path.
shield/ground	A twisted connecting cable with shielding must be used to connect the RS485 interface. To avoid transmission errors, only the signals listed above and, if necessary, GND may be routed in the connecting cable.
max registers/read	127
response timeout	1000 ms
broadcast	supported
sentinel values	1.0 x 10^37: Measuring range underflow, 2.0 x 10^37: Measuring range overflow, 3.0 x 10^37: Value invalid, 4.0 x 10^37: Division by zero, 5.0 x 10^37: Math error, 6.0 x 10^37: Error: terminal temperature/compensation signal, 7.0 x 10^37: Probe short circuit, 8.0 x 10^37: Probe break
doc revision	V5.00/EN/00688816/2024-04-10

field reports — community-sourced, unverified (checked 2026-06-11)

confirmed: Baud rates [9600, 19200, 38400, 115200] — confirmed by JUMO diraTRON 104/108/116/132 Operating Manual and Compact Controllers Overview
confirmed: Framing [RTU, TCP] — confirmed by JUMO diraTRON 104/108/116/132 Operating Manual
confirmed: Function codes [3, 4, 6, 16] — confirmed by JUMO diraTRON/diraVIEW Interface Description
confirmed: Parity N, Stop bits 1 — confirmed by JUMO diraTRON 104/108/116/132 Operating Manual
confirmed: Terminals RxD/TxD+ (terminal 11), RxD/TxD- (terminal 12) — confirmed by JUMO diraTRON Compact Controllers Overview
confirmed: Sentinels (1.0 x 10^37: Measuring range underflow, 2.0 x 10^37: Measuring range overflow, etc.) — confirmed by JUMO diraTRON/diraVIEW Interface Description
confirmed: Register addresses (analog_input @ 28672, min_value @ 28674, max_value @ 28676, tara_value @ 28678, math_result_1 @ 28680, math_result_2 @ 28682, math_result_3 @ 28684, math_result_4 @ 28686, controller_setpoint_value @ 28688, controller_actual_value @ 28690, control_deviation @ 28692, output_level_display @ 28694, setpoint_value_1 @ 28696, setpoint_value_2 @ 28698, setpoint_value_3 @ 28700, setpoint_value_4 @ 28702, ramp_end_value @ 28704, current_ramp_setpoint_value @ 28706, ext_analog_input_1 @ 28708, ext_analog_input_2 @ 28710, timer_run_time @ 28716, timer_remaining_running_time @ 28718, timer_value @ 28720, operating_time @ 28756, limit_value_monitoring_functions @ 27984, timer_status_word @ 27985, digital_outputs @ 27986, digital_control_signals @ 27987, digital_inputs @ 27988, external_digital_inputs @ 27989, controller_outputs @ 27990) — confirmed by JUMO diraTRON/diraVIEW Interface Description

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

generated — A prompt produced it. Unproven — anyone can regenerate this.
structure-verified — Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.
coherence-checked — Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
hardware-verified (software-key) x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

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