Watlow PPC-2000 - Manual (Page 31)

PPC-2000 User’s Guide Chapter 1: Overview
Doc.# 30002-00 Rev 2.3 Watlow Anafaze 7
The PPC-2010 has 48 built-in digital I/O points. 24 points are
outputs only. 22 of these outputs are user configurable for PID
control, alarms or logic outputs. The other 2 outputs are
dedicated to system status and global alarm. The remaining 24
I/O points are individually configurable as either inputs or
outputs.
The following summarizes the processor’s features:
• 2 isolated communication ports
• Transmit/receive indicators
• Rotary switch for setting the Modbus network address
• 46 user configurable digital I/O
• System status and digital output overload indicators
• Real time clock
• Flash PROM and battery backed RAM
• Connects to terminal block board via 50-pin SCSI cable
PPC-2021 - 2022 Analog In Modules
The PPC-2021 and 2022 modules plug in to the module
expansion bus. The analog input modules support 16
differential inputs or 32 single-ended inputs, and accommodate
various sensors such as thermocouples (TCs), Resistive
Temperature Sensing Devices (RTDs) and linear transducers
using the terminal boards described later in this section.
• Supports TCs, RTDs and linear voltage and current
signals
• LED status indicator
• DIN rail/panel mount
• Connects to analog input terminal board via 50-pin SCSI
cable
PPC-2024 - 2025 Analog In High Isolation Modules
The PPC-2024 and 2025 modules plug in to the module
expansion bus. The high isolation analog input modules accept
8 or 16 differential analog inputs and accommodate various
sensors such as TCs, RTDs and linear transducers using the
terminal boards described later in this section.
• High voltage isolation capability
• Supports TCs, RTDs and linear voltage & current signals
• LED status indicator
• DIN rail/panel mount
• Connects to analog input terminal board via 50-pin SCSI
cable