Technical parameters

Patron

The following article contains technical details of communication interfaces on Patron units, as well as the unit's storage, installation and working conditions.

Connector and button description

Terminal marking	Meaning
+24V	Power terminal - positive pole
GND	Power terminal - negative pole
DI	Digital input
DIGND	Digital input common terminal – negative pole
DO	Digital output
DOGND	Digital output common terminal – negative pole
RO	Relay output
COM	Digital output common terminal – negative pole
AI	Analog input
AIS	Power supply of the relevant AI
AOR	Analog output (voltage or current ) / resistance measurement
AOV	Analog output (voltage only)
AGND	Analog input/output common terminal - negative pole
RS485-A/RS485-B	RS-485 communication line terminals
RS485-END	Connectable terminating resistor of RS-485 communication line
RS232-TXD/RXD	RS-232 communication line terminals
ETH	Ethernet port
USB	USB A 2.0 port
microSIM	micro sim slot
Antenna	LTE antenna interface
SERVICE	Service button

Working temperature	0 °C .. +55 °C
Rated voltage - SELV	24 V⎓ (±5%)
Power consumption	Max. 12 W - 22 W depending on model
Reverse polarity protection	Yes
Storage conditions	Temperature: -25 °C .. +70 °C Humidity: 10 % .. 95 %, w/o aggressive substances, condensing vapours or fog
Electric strength	according to EN 60950
Ingress protection (IEC 529)	IP20
Working position	Vertical
Installation	To a 35 mm DIN rail in an electrical distribution box
Connection	Pluggable screw terminals
Wire gauge	Max. 1.5 mm² for 1-Wire Max. 2.5 mm² for other terminals
Terminal spacing	3.5 mm for 1-Wire 5.08 mm for other terminals
Terminal tightening torque	Max. 0.4 Nm

Digital inputs

Input type	SINK
Input terminal	DI
Common ground	DIGND
Log. 0	< 3 V DC
Log. 1	> 7 V DC
Maximum voltage	35 V DC
Non-defined state	3-7 V DC
Input resistance for TRUE	6 200 Ω
Voltage drop on DI diode	1.2 V
Minimum pulse length	20 μs
0–>1 / 1–>0 delay	Typ. 20 μs / 60 μs
Maximum CNT counter input frequency	10 kHz
LED indication	Yes
Galvanic isolation	Yes (Basic, between DI groups)
Insulation voltage (pulse)	1500 V

Digital outputs

Output type	SINK (NPN - open collector)
Output terminals	DO
Common ground	DOGND
Switching voltage	5–50 V DC
Switching current continuous/pulse	750 mA / 1 A
Max. total group* load	1 A
Inductive load handling	Integrated FBD diode (optional)
Switching period (open/close)	Typ. 130 ns / 20 ns
Maximum PWM resolution	16 bits
Maximum PWM frequency	200 kHz
Galvanic isolation	No
Overcurrent protection	No

Relay outputs

(i)

Please note: The data below represent a selection of the most important parameters and serve only as a quick reference.

Detailed information can be found in the product datasheet provided by the relay manufacturer: FTR-F3AA024E-HA

Output type	Electromechanic non-shielded relay
Output terminal	RO
Common terminal	COM
Contact type	Normally open (SPST-NO)
Used relay type	FTR-F3AA024E-HA
Maximum switching voltage	250 V AC 30 V DC
Maximum switching current	5 A
Maximum common terminal current	10 A
Short-term current overload	5 A
Mechanical lifespan	5 000 000
Electrical lifespan	Up to 100 000 (according to the connected load)
Operate/release time	10 ms
Designed for load character	AC-15, DC-13 (resistive)
Load handling	External (RC, varistor, diode, thermistor)
Short circuit protection	No
Overvoltage protection	No
LED indication	Yes
Galvanic isolation	Yes (Basic)
Insulation voltage (pulse)	2500 V between RO and RO 4000 V between RO and all other circuits

Analog inputs

	Section 1 (AI1)	Sections 2,3 + some units (eg. S5xx)	Section 2 (M537)
Input terminals	AI	AI, AIS	AI
Common ground	AGND	AGND	AGND
Input modes	0–10 V⎓ voltage meas. 0–20 mA current meas.	0–10 V⎓ voltage meas. 0–2.5 V⎓ voltage meas. 0–20 mA current meas. 0–1960 Ω resistance meas. 0–100 kΩ resistance meas.	0–10 V⎓ voltage meas. 0–2 V⎓ voltage meas. 4–20 mA current meas. 2 kΩ (75–2000 Ω) resistance meas. 20 kΩ (1–20 kΩ) resistance meas.
Maximum input voltage	12 V DC	15 V DC	15 V DC
Input resistance (voltage meas.)	66 kΩ	44 kΩ	12 kΩ ±20 % (0–10 V) 1 MΩ ±50 % (0–2 V)
Input resistance (current meas.)	100 Ω	100 Ω	100 Ω ±1 %
Accuracy	±0.5 %	±0.2 %	±0.2 % (0–10 V, 4–20 mA) ±1 % (0–2 V) ±0.3 % / 0.5 Ω (2 kΩ) ±1 % / 10 Ω (20 kΩ)
Resolution	12 bits	16 bits (voltage and current meas.) 24 bits (resistance meas.)	24 bits
Conversion time	10 μs	60 μs (voltage and current meas.) 400 ms (resistance meas.)	200 ms
Protection type	Integrated overvoltage	Integrated overvoltage	Integrated transil
Galvanic isolation	No	Yes (from other sections*)	Yes, 1500 V (pulse)(between AI and from other sections*)

Analog outputs

	Section 1	Sections 2,3 + some units (eg. S5xx)
Output terminals	AOR	AOV
Common conductor	AGND	AGND
Output functions	0–10 V DC voltage source 0–20 mA current source 0–1960 Ω resistance meas.	0–10 V DC voltage source
Output voltage range	0-10 V DC	0-10 V DC
Output current range	0-20 mA	—
Maximum output current	20 mA	20 mA
Output accuracy	±0.5 %	±0.5 %
Resolution	12 bits	12 bits
Conversion	1 ms	300 μs
Protection type	Integrated overvoltage	Integrated overvoltage
Galvanic isolation	No	Yes (from other sections*)

RS485 interface

Terminals	RS485-A, RS485-B
Galvanic isolation	Yes (basic)
Isolation voltage	1000 V
ESD protection	±15 kV
Communication speeds	2400 bps 4800 bps 9600 bps 19200 bps 38400 bps 57600 bps 115200 bps
Input impedance	12 kΩ
Input voltage hysteresis	70 mV
Output characteristic	±2.5 V
Terminating resistor	Built-in attachable 120 Ω (RS485-END)
RS485 pull-up / pull-down resistors	560 Ω / 560 Ω

RS232 interface

Terminals	RXD, TXD, GND
Galvanic isolation	No
ESD protection	±15 kV
Communication speeds	2400 bps 4800 bps 9600 bps 19200 bps 38400 bps 57600 bps 115200 bps
Input impedance	5 kΩ
Input voltage hysteresis	0,5 V
Output characteristic	±7,8 V

Other I/O ports and interfaces

Ethernet port ETH	10/100 Mbit/s
USB port	2x USB 2.0 (for service)