SNAP PAC BRAIN COMPARISON CHART
SNAP PAC Brains User’s Guide
18
SNAP PAC Brain Comparison Chart
For descriptions of features, see
. The following table compares SNAP PAC brains with
firmware 8.0.
FEATURE
SNAP-PAC-EB1
SNAP-PAC-EB2
I/O modules
supported
Digital (4–32 channels)
n
n
Analog (2–32 channels)
n
n
Serial (RS-232, RS-485)
n
n
Special-purpose (motion control, power moni-
toring, Profibus
®
, Wiegand
®
)
n
n
Digital I/O point
features
On/off status
n
n
Input latching
n
n
Watchdog timer
1
n
n
High-speed counting (up to 20 kHz)
1
n
Quadrature counting
2
n
On-pulse and off-pulse measurement
1,3
n
TPO (time-proportional output)
3
n
Pulse generation (N pulses, continuous square
wave, on-pulse, and off-pulse)
3
n
Analog I/O point
features
Thermocouple linearization (32-bit floating
point for linearized values)
n
n
Minimum/maximum values
n
n
Offset and gain
n
n
Scaling
n
n
Time-proportional output
4
n
n
Output clamping
n
n
Filter weight
n
n
Watchdog timer
n
n
Ramping
3
n
Ethernet networking
n
n
Two switched Ethernet network interfaces (one IP address)
n
n
Maximum number of modules allowed per I/O unit (with largest rack):
Any mix of 16 digital, 16 analog, 8 serial or special-purpose
n
n
PID logic on the brain (96 PID loops per brain)
n
n
Modbus
®
/TCP
n
n
OPC driver support
n
n
OptoMMP memory-mapped protocol
n
n