Feature |
SoftPAC |
SNAP-PAC-S1 |
SNAP-PAC-S2 |
SNAP-PAC-R1
SNAP-PAC-R1-FM |
SNAP-PAC-R2 |
SNAP-PAC-EB1
SNAP-PAC-EB1-FM |
SNAP-PAC-EB2
SNAP-PAC-EB2-FM |
SNAP-PAC-SB1 |
SNAP-PAC-SB2 |
Runs PAC Control strategies |
x |
x |
x |
x |
x |
|
|
|
|
Max PAC Control charts running at once |
64 |
32 |
32 |
16 |
16 |
|
|
|
|
Communication |
Two independent Ethernet network interfaces (two IP addresses) |
a |
x |
x |
x |
x |
|
|
|
|
Two switched Ethernet network interfaces (one IP address) for multi-drop |
|
|
|
|
|
x |
x |
|
|
Total number of RS-232 serial ports |
b |
2 |
4c |
1 |
1 |
0 |
0 |
0 |
0 |
Total number of RS-485 serial ports |
b |
1 |
4c |
0 |
0 |
0 |
0 |
1 |
1 |
Protocols |
EtherNet/IP (Allen-Bradley RSLogix systems, others) |
|
x |
x |
x |
x |
x |
x |
|
|
Modbus/TCP (slave)d |
|
x |
x |
x |
x |
x |
x |
|
|
OPC driver support |
x |
x |
x |
x |
x |
x |
x |
xe |
xe |
RESTful API |
|
x |
x |
x |
x |
|
|
|
|
HTTP/HTTPS |
|
x |
x |
x |
x |
|
|
|
|
OptoMMP memory-mapped protocol |
xf |
x |
x |
x |
x |
x |
x |
x |
x |
SNMP |
|
x |
x |
x |
x |
x |
x |
|
|
FTP server, file system |
|
x |
x |
x |
x |
x |
x |
|
|
FTP client |
x |
x |
x |
x |
x |
|
|
|
|
SMTP (email client, authentication, attachments |
x |
x |
x |
x |
x |
|
|
|
|
General |
|
SNAP-PAC nodes for Node-RED; RESTful API |
|
x |
x |
x |
x |
|
|
|
|
Direct access to hard drive, network drives (Dropbox, etc.) |
x |
|
|
|
|
|
|
|
|
Realtime clock |
a |
x |
x |
x |
x |
x |
x |
x |
x |
Backup battery (recharges when device has power) |
|
x |
x |
x |
x |
x |
x |
x |
x |
Physical RAM (MB)
RAM available for PAC Control strategy (MB)
Battery-backed RAM (MB)
Flash memory (MB) |
-a
64
8
-g |
32
16
8
16 |
32
16
8
16 |
16
4
2
8 |
16
4
2
8 |
16
--
--
8 |
16
--
--
8 |
16
--
--
8 |
16
--
--
8 |
Removable data storage (microSD card slot) |
a |
32 GB max |
32 GB max |
32 GB max |
32 GB max |
|
|
|
|
32-bit processor |
a |
x |
x |
x |
x |
x |
x |
x |
x |
Floating-point unit (FPU) |
a |
x |
x |
x |
x |
|
|
|
|
Power requirements |
a |
8-32 VDC
10W-11.3 W max |
5.0 to 5.2 VDC
@ 1.2 to 1.5 A |
5.0 to 5.2 VDC
@ 750 mA-1.0 A |
5.0 to 5.2 VDC
@ 750 mA-1.0 A |
Operating temperature (degrees C)
Storage temperature (degrees C) |
a |
-20 to 60
-40 to 85 |
-20 to 60
-40 to 85 |
-20 to 60
-40 to 85 |
-20 to 60
-40 to 85 |
Humidity (non-condensing) |
a |
0-95% |
0-95% |
0-95% |
0-95% |
PID logic (maximum 96 PID loops per controller or brain) |
|
|
|
x |
x |
x |
x |
x |
x |
Digital I/O features |
Input latching |
|
|
|
x |
x |
x |
x |
x |
x |
On/off status |
|
|
|
x |
x |
x |
x |
x |
x |
Watchdog timer |
|
|
|
x |
x |
x |
x |
x |
x |
High-speed counting (up to 20 kHz)h |
|
|
|
x |
|
x |
|
x |
|
Quadrature countingi |
|
|
|
x |
|
x |
|
x |
|
On-pulse and off-pulse measurementh |
|
|
|
x |
|
x |
|
x |
|
Frequency and Period measurementh |
|
|
|
x |
|
x |
|
x |
|
TPO (time-proportional output) |
|
|
|
x |
x |
x |
x |
x |
x |
Digital totalizingh |
|
|
|
x |
x |
x |
x |
x |
x |
Pulse generation (continuous square wave, N pulses, on-pulse, off-pulse) |
|
|
|
x |
x |
x |
x |
x |
x |
Analog I/O features |
Thermocouple linearization (32-bit floating point for linearized values) |
|
|
|
x |
x |
x |
x |
x |
x |
Minimum/maximum values |
|
|
|
x |
x |
x |
x |
x |
x |
Offset and gain |
|
|
|
x |
x |
x |
x |
x |
x |
Scaling |
|
|
|
x |
x |
x |
x |
x |
x |
TPO (time-proportional output)k |
|
|
|
x |
x |
x |
x |
x |
x |
Output clamping |
|
|
|
x |
x |
x |
x |
x |
x |
Filter weight |
|
|
|
x |
x |
x |
x |
x |
x |
Watchdog timer |
|
|
|
x |
x |
x |
x |
x |
x |
Analog totalizingl |
|
|
|
x |
x |
x |
x |
x |
x |
Rampingl |
|
|
|
x |
x |
x |
x |
x |
x |
a As provided by the Microsoft Windows computer SoftPAC runs on.
b SoftPAC cannot communicate through serial ports on the PC.
c Serial ports are software configurable for RS-232 or RS-485.
d PAC firmware >=R9.4b, 8 max connections. Lower firmware, 2 max connections.
e Available with OptoOPCServer and PAC Control, through a SNAP PAC controller.
f SoftPAC includes Status Read, Status Write, and Scratch Pad memory map areas.
g Flash memory function implemented via a file; size is limited only by disk space.
h Four-channel modules only; not on high-density digital modules.
i Requires a SNAP-IDC5Q quadrature input module.
k Requires a SNAP analog TPO module (SNAP-AOD-29).
l Requires a SNAP PAC controller and PAC Control commands. |