SRM1-C01-V2/C02-V2
SRM1-C01-V2/C02-V2
12
Communications Specifications
Communications method
CompoBus/S protocol
Coding method
Manchester coding method
Connection method
Multi-drop method and T-branch method (see note 1)
Communications baud rate
750,000 bps/93,750 bps (see note 2)
Communications
cycle time
High-speed
comm nications
0.5 ms with 8 Slaves for inputs and 8 Slaves for outputs
cycle time
communications
mode
0.8 ms with 16 Slaves for inputs and 16 Slaves for outputs
Long-distance
comm nications
4.0 ms with 8 Slaves for inputs and 8 Slaves for outputs
communications
mode
6.0 ms with 16 Slaves for inputs and 16 Slaves for outputs
Communications cable
2-conductor VCTF cable (0.75 x 20)
Dedicated flat cable
Communications
distance
High-speed
communications
mode
VCTF cable:
Main line length:
100 m max.
Branch line length:
3 m max.
Total branch line length: 50 m max.
Flat cable:
Main line length:
30 m max.
Branch line length:
3 m max.
Total branch line length: 30 m max.
(When flat cable is used to connect fewer than 16 Slaves, the main line can be up to
100 m long and the total branch line length can be up to 50 m.)
Long-distance
communications
mode
VCTF cable:
Main line length:
500 m max.
Branch line length:
6 m max.
Total branch line length: 120 m max.
Max. number of connecting nodes
32
Error control checks
Manchester code check, frame length check, and parity check
Note:
1. A terminator must be connected to the point in the system farthest from the Master.
2. The communications baud rate is switched using DM settings (default setting is 750,000 bps).
General Specifications
Supply voltage
24 VDC
Allowable supply voltage
20.4 to 26.4 VDC
Power consumption
3.5 W max.
Inrush current
12.0 A max.
Noise immunity
Conforms to IEC61000-4-4, 2 kV (power lines)
Vibration resistance
10 to 57 Hz, 0.075-mm amplitude, 57 to 150 Hz, acceleration: 9.8 m/s
2
in X, Y, and Z
directions for 80 minutes each
(Time coefficient; 8 minutes
×
coefficient factor 10 = total time 80 minutes)
Shock resistance
147 m/s
2
three times each in X, Y, and Z directions
Ambient temperature
Operating: 0
°
C to 55
°
C
Storage: –20
°
C to 75
°
C
Humidity
10% to 90% (with no condensation)
Atmosphere
Must be free from corrosive gas.
Terminal screw size
M3
Power interrupt time
DC type: 2 ms min.
Weight
150 g max.
