General information
Product type designationTM Timer DIDQ 16x24V
based on6ES7552-1AA00-0AB0
Product function
I&M dataYes; I&M 0
Isochronous modeYes
Engineering with
STEP 7 TIA Portal configurable/integrated from versionsee entry ID: 109746275
Installation type/mounting
Rail mountingYes; S7-1500 mounting rail
Load voltage 1L+
Rated value (DC)24 V
permissible range, lower limit (DC)19.2 V
permissible range, upper limit (DC)28.8 V
Reverse polarity protectionYes; against destruction
Load voltage 2L+
Rated value (DC)24 V
permissible range, lower limit (DC)19.2 V
permissible range, upper limit (DC)28.8 V
Reverse polarity protectionYes; against destruction
Input current
from load voltage 1L+ (without load), max.40 mA; without load
from load voltage 2L+ (without load), max.30 mA; without load
Encoder supply
Number of outputs8; max. depending on parameterization
24 V encoder supply
24 VYes; L+ (-0.8 V)
Short-circuit protectionYes
Output current, max.1.2 A; Total current of all encoders / channels, max. 0.5 A per output
Power
Power consumption from the backplane bus1.3 W
Power loss
Power loss, typ.5 W
Address space per module
Inputs44 byte
Outputs74 byte
Digital inputs
Number of digital inputs8; max. depending on parameterization
Digital inputs, parameterizableYes
Input characteristic curve in accordance with IEC 61131, type 3Yes
Digital input functions, parameterizable
Digital input with time stampYes
— Number, max.8
CounterYes
— Number, max.4
Counter for incremental encoderYes
— Number, max.4
Digital input with oversamplingYes
— Number, max.8
HW enable for digital inputYes
— Number, max.4
HW enable for digital outputYes
— Number, max.4
Input voltage
Type of input voltageDC
Rated value (DC)24 V
for signal "0"-5 ... +5 V
for signal "1"+11 to +30V
permissible voltage at input, min.-30 V; -5 V continuous, -30 V brief reverse polarity protection
permissible voltage at input, max.30 V
Input current
for signal "1", typ.2.5 mA
Input delay (for rated value of input voltage)
Minimum pulse width for program reactions3 µs; for parameterization "none"
for standard inputs
— ParameterizableYes; none / 0.05 / 0.1 / 0.4 / 0.8 ms
Cable length
shielded, max.1 000 m; Depending on sensor, cable quality and rate of change
unshielded, max.600 m; Depending on sensor, cable quality and rate of change
Digital outputs
Type of digital outputTransistor
Number of digital outputs16; max. depending on parameterization
in groups of8
Current-sinkingYes; With High Speed output
Current-sourcingYes
Digital outputs, parameterizableYes
Short-circuit protectionYes; electronic/thermal
Response threshold, typ.1.7 A with Standard output, 0.5 A with High Speed output
Limitation of inductive shutdown voltage to-0.8 V
Controlling a digital inputYes
Digital output functions, parameterizable
Digital output with time stampYes
— Number, max.16
PWM outputYes
— Number, max.16
Digital output with oversamplingYes
— Number, max.16
Switching capacity of the outputs
with resistive load, max.0.5 A; 0.1 A with High Speed output
on lamp load, max.5 W; 1 W with High Speed output
Load resistance range
lower limit48 Ω; 240 ohm with High Speed output
upper limit12 kΩ
Output voltage
Type of output voltageDC
for signal "0", max.1 V; With High Speed output
for signal "1", min.23.2 V; L+ (-0.8 V)
Output current
for signal "1" rated value0.5 A; 0.1 A with High Speed output, observe derating
for signal "1" permissible range, max.0.6 A; 0.12 A with High Speed output, observe derating
for signal "1" minimum load current2 mA
for signal "0" residual current, max.0.5 mA
Output delay with resistive load
"0" to "1", max.1 µs; With High Speed output, 5 µs with Standard output
"1" to "0", max.1 µs; With High Speed output, 6 µs with Standard output
Switching frequency
with resistive load, max.10 kHz
on lamp load, max.10 Hz
Total current of the outputs
Current per group, max.4 A
Current per module, max.8 A; Observe derating
Cable length
shielded, max.1 000 m; depending on load and cable quality
unshielded, max.600 m; depending on load and cable quality
Connectable encoders
Incremental encoder (asymmetrical)Yes
24 V initiatorYes
2-wire sensorYes
— permissible quiescent current (2-wire sensor), max.1.5 mA
Encoder signals, incremental encoder (asymmetrical)
Input voltage24 V
Input frequency, max.50 kHz
Counting frequency, max.200 kHz; with quadruple evaluation
Cable length, shielded, max.600 m; Depending on input frequency, encoder and cable quality; max. 200 m at 50 kHz
Incremental encoder with A/B tracks, 90° phase offsetYes
pulse encoderYes
Interface types
Input characteristic curve in accordance with IEC 61131, type 3Yes
Isochronous mode
Bus cycle time (TDP), min.250 µs
Jitter, max.1 µs
Interrupts/diagnostics/status information
Diagnostics functionYes
Substitute values connectableYes
Alarms
Diagnostic alarmYes
Diagnoses
Monitoring the supply voltageYes
short-circuitYes
Diagnostics indication LED
RUN LEDYes; green LED
ERROR LEDYes; red LED
MAINT LEDYes; Yellow LED
Monitoring of the supply voltage (PWR-LED)Yes; green LED
Channel status displayYes; green LED
for channel diagnosticsYes; red LED
Integrated Functions
CounterYes
Number of counters4
Counting frequency, max.200 kHz; with quadruple evaluation
Counting functions
Continuous countingYes
Position detection
Incremental acquisitionYes
Potential separation channels
between the channels and backplane busYes
Isolation
Isolation tested with750 V DC (type test) and according to EN 50155 (routine test)
Railway application
EN 50121-3-2Yes; EMC for rail vehicles
EN 50121-4Yes; EMC for signal and telecommunications systems
EN 50121-5Yes; EMC for fixed installations and railway power supply equipment (shielded cables required)
EN 50124-1Yes; Railway applications - overvoltage category OV2; pollution degree PD2; rated surge voltage UNi = 0.5 kV; UNm = 24 V DC
EN 50125-1Yes; Rail vehicles - see ambient conditions
EN 50125-2Yes; Stationary electrical equipment - see ambient conditions
EN 50125-3Yes; Signal and telecommunications systems - see ambient conditions; vibrations and shocks: Application point outside of tracks (1 m to 3 m away from track)
EN 50155Yes; Rail vehicles - temperature class OT4, ST1/ST2, horizontal mounting position
EN 61373Yes; Rail vehicles - vibrations and shocks: Category 1 Class A/B
Fire protection acc. to EN 45545-2Yes; For proof of conformity, see Service & Support
Ambient temperature during operation
horizontal installation, min.-40 °C; = Tmin (incl. condensation/frost)
horizontal installation, max.70 °C; = Tmax; +85 °C for 10 min (OT4, ST1/ST2 acc. to EN 50155)
vertical installation, min.-40 °C; = Tmin
vertical installation, max.40 °C; = Tmax; Note derating
Altitude during operation relating to sea level
Installation altitude above sea level, max.2 000 m
Ambient air temperature-barometric pressure-altitudeTmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m)
Relative humidity
With condensation, tested in accordance with IEC 60068-2-38, max.100 %; RH incl. condensation / frost (no commissioning in bedewed state), horizontal installation
Coolants and lubricants
— Resistant to commercially available coolants and lubricantsYes; Incl. diesel and oil droplets in the air
Use in stationary industrial systems
— to biologically active substances according to EN 60721-3-3Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request
— to chemically active substances according to EN 60721-3-3Yes; Class 3C4 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to mechanically active substances according to EN 60721-3-3Yes; Class 3S4 incl. sand, dust, *
Use on land craft, rail vehicles and special-purpose vehicles
— to biologically active substances according to EN 60721-3-5Yes; Class 5B2 mold, fungus and dry rot spores (with the exception of fauna); Class 5B3 on request
— to chemically active substances according to EN 60721-3-5Yes; Class 5C3 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to mechanically active substances according to EN 60721-3-5Yes; Class 5S3 incl. sand, dust; *
Usage in industrial process technology
— Against chemically active substances acc. to EN 60654-4Yes; Class 3 (excluding trichlorethylene)
— Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)
Remark
— Note regarding classification of environmental conditions acc. to EN 60721, EN 60654-4 and ANSI/ISA-71.04* The supplied plug covers must remain in place over the unused interfaces during operation!
Conformal coating
Coatings for printed circuit board assemblies acc. to EN 61086Yes; Class 2 for high reliability
Protection against fouling acc. to EN 60664-3Yes; Type 1 protection
Electronic equipment on rolling stock acc. to EN 50155Yes; Class PC2 protective coating acc. to EN 50155:2017
Military testing according to MIL-I-46058C, Amendment 7Yes; Discoloration of coating possible during service life
Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830AYes; Conformal coating, Class A
Decentralized operation
to SIMATIC S7-1500Yes
Dimensions
Width35 mm
Height147 mm
Depth129 mm
Weights
Weight, approx.320 g
Other
Note:for use in railway applications, also observe the product information "SIPLUS extreme RAIL" A5E37661960A, Online Support article 109736776