SYSMAC CS-series High-speed Counter Units
last update: December 19, 2022
Item | CS1W-CT021/CT041 |
---|---|
Unit type | CS1 Special I/O Unit |
General Specifications | Conform to general specifications for SYSMAC CS1-series |
Ambient Operating Temperature | 0 to 55 ° C |
Ambient Storage Temperature | -20 to 75 ° C |
Ambient Operating Humidity | 10 to 90% without condensation |
Internal Current Consumption | 450 mA (CS1W-CT041), 360 mA (CS1W-CT021) (at 5V via backplane) |
Dimensions | 35 × 130 × 100 mm (W × H × D) |
Weight | 245 g |
Mounting Position | CS1 CPU Rack or CS1 Expansion Rack
(Cannot be mounted to a C200H Expansion I/O Rack or a SYSMAC BUS Slave Rack). |
Maximum Number of CT021/CT041
Units per Rack |
Equal to the number of slots of the Rack *1 |
Maximum Number of CT021/CT041
Units per basic CS1-system |
24 |
Data Exchange with CPU Unit | I/O Refresh Data Area (CIO-bits 200000 to 295915, CIO-words 2000 to 2959): *2)
Special I/O Unit DM-Area (D-words 20000 to 29599): 400 DM-words per Unit are transmitted form the CPU to the Unit at Power Up or when the Unit is restarted *3 |
Item | CS1W-CT021/CT041 |
---|---|
Number of Counters | 2 run-time configurable Counters for the CS1W-CT021
4 run-time configurable Counters for the CS1W-CT041 |
Counter Type | • Simple Counter
• Circular Counter • Linear Counter The Counter Type can be chosen by DIP switch at the back of the Unit. By default the Counters are set to Simple Counter. |
Maximum Input Frequency | 500 kHz |
Maximum Response Time | 0.5 ms |
Signals per Counter | Phase A, B and Z |
Digital I/O | 4 Digital Inputs (I0, I1, I2 and I3):
Every Digital Input can be assigned to a Counter. In this way one Counter can be controlled by a maximum of 4 Digital Inputs. 4 Digital Outputs (O0, O1, O2 and O3): The Unit Output Pattern represents the 4 Digital Outputs and 28 Soft Outputs. |
Input Signal Types | • Phase Differential (multiplication ×1), (multiplication ×2) * and (multiplication ×4) *
• Up/Down * • Pulse & Direction * |
Counter Control using
CIO-software bits |
• Open Gate / Start Counter: Counter is enabled to count pulses
• Close Gate / Stop Counter: Counter is disabled to count pulses • Preset Counter: Preset Value can be set in CIO • Reset Counter to zero • Capture Counter Value: Captured Counter Value can be read using IORD-instruction |
Digital Input Functionality | • Gate *
• Reset * • Preset * • Capture * • Stop/Capture-Continue * • Stop/Capture-Reset/Continue * • Capture/Reset * • Enable Reset * • Disable Reset * For every Function the corresponding action can be triggered on a rising- or on a falling edge. |
Output Control Mode | • Automatic Output Control in:
• Range Mode * • Comparison Mode * • Rate Range • Manual Output Control |
Output State Control | On changing the Operating Mode of the PLC from RUN/MONITOR → PROGRAM, an I/O Bus Error or an Overflow/Underflow Error,
the Digital Outputs can be configured to: • Continue automatic updating Output States • Freeze Output States * • Predefine Output States * |
Output Driver Configuration | The Output Driver of every Digital Output can be configured as:
• NPN • PNP * |
Reset Signals | Every Counter can be reset to zero by (a combination of) the following sources:
• Software Counter Reset Bit • Digital Input * • Z-Input * |
Extra Functions | Programmable Output Pulse *:
To every Digital Output an ON-delay and/or a Pulse Duration [1 to 9999 ms] can be applied. • Rate Measurement *: For every Counter the Pulse Rate can be measured by defining a Time-Window [1 to 9999 ms]. Up to a maximum of 64 Rate Values are stored in the Rate History Log File. Rate Values from the Rate History Log File can be read using the IORD-instruction. Additionally for every Counter two Rate Ranges can be defined that control the Outputs according to the measured Rate Value. • Hysteresis *: To prevent Outputs from being switched On and Off by very small fluctuations in the Counter Value around Range Limits, for every Counter an Hysteresis-value [1 to 255] can be defined (the Unit must in Range Mode). |
Noise Filtering Counter Inputs
and Digital Inputs |
To suppress noise on the signal lines of the Counter Inputs (A and B) and the Digital Inputs (I0, I1, I2 and I3) a Noise Filter can be
configured: • 10 kHz * • 50 kHz (default) • 500 kHz * For the Digital Inputs the 500 kHz filter can not be selected. The Z-Input Signals of every Counter are filtered with a fixed Noise Filter of 1 kHz. |
Initial Counter Value | • The Initial Counter Value * is transferred to the Unit when the Unit is Powered Up or Restarted. The Initial Counter Value is very useful to overcome problems in case of power failure. |
IORD- and IOWR-instructions | Run-time configuration and operation of the High-speed Counter Unit is possible by using IORD- and IOWR-instructions. The following
data can be read or written: • DM-configuration data * • Range- and Comparison Data * • Captured Counter Value • Rate History Log File Data * • Counter Value • (Re) Configure High-speed Counter Unit * • Error Clear |
Interrupts of Outputs | The Digital Outputs and the Soft Outputs of the Unit Output Pattern can all be configured to generate
interrupts to the CS1-CPU * . |
Interrupts of Digital Inputs | The Digital Inputs can all be configured to generate interrupts to the CS1-CPU * . |
Error History Log Function | Stores up to 30 error log records |
Item | Counter Inputs A and B | Digital Inputs
(I0 and I1) |
|||
---|---|---|---|---|---|
Input Voltage | 24 VDC
(19.6 to 26.4 V) |
12 VDC
(9.8 to 13.2 V) |
5 VDC
(4.5 to 5.5 V) |
Line Driver | 24 VDC
(19.6 to 26.4 V) |
Input Current (typical) | 8 mA | 8 mA | 7 mA | 11 mA
Connectable to RS-422 compatible Line Drivers. |
7.6 mA |
ON Voltage (min.) | 19.6 V | 9.8 V | 4.5 V | 19.6 V | |
OFF Voltage (max.) | 4 V | 2.5 V | 1.5 V | 4 V |
Item | Counter Input Z | |||
---|---|---|---|---|
Input Voltage | 24 VDC (18.6 to 26.4 V) | 12 VDC (9.8 to 13.2 V) | 5 VDC (4.5 to 5.5 V) | Line Driver |
Input Current (typical) | 7.3 mA | 6.6mA | 6 mA | 11 mA
Connectable to RS-422 compatible Line Drivers. |
ON Voltage (min.) | 18.6 V | 9.8V | 4.5 V | |
OFF Voltage (max.) | 4 V | 2.5V | 1.5 V |
Counter Inputs A, B, Z and Digital Inputs | |
---|---|
5/12/24V input signals | RS-422 Line Driver signals |
Counter inputs A and B
Input pulses with a duty factor of 50% Relationship between A and B phases with phase differential inputs Counter Input Z */Digital Inputs (24 V) *Maximum allowed frequency of Z-pulses is 1 kHz |
Counter inputs A and B
Input pulses with a duty factor of 50% Relationship between A and B phases with phase differential inputs Counter Input Z * * Maximum allowed frequency of Z-pulses is 1 kHz |
Filter Selection | Timing requirement (μs) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | I | J | |
10 kHz | <3 | >50 | >100 | >23 | >10 | >100 | >50 | >100 | >23 | >10 |
50 kHz | <3 | >10 | >20 | >4.5 | >10 | >20 | >10 | >20 | >4.5 | >10 |
500 kHz | - | - | - | - | - | >2 | >1 | >4 | >1 | >10 |
Item | Specification |
---|---|
Driver Type | Open Collector (NPN/PNP selectable) |
Operating Voltage Range | 12 to 24 V (10.2 to 26.4 V) 30 mA max. at 26.4 VDC (for PNP output, without load current) |
Maximum Switching Capacity | 46 mA at 10.2 V to 100 mA at 26.4 V (400 mA maximum/common) (see picture below) |
Minimum Switching Current | 5 mA |
Output ON-delay | 100 μs max. |
Output OFF-delay | 100 μs max. |
Leakage Current | 0.1 mA max. |
Residual Voltage | 1.5 V max. |
Short Circuit Protection | None |
The maximum switching current depends upon the power supply voltage, as shown below.
last update: December 19, 2022