PAROCK1: AB Logix To Modbus (Master / Slave)   Now a software solution is available for your Modbus needs in Rockwell Allen-Bradley Logix family processors. It is an Add-on instruction for v16, (other solutions are available for pre v16 systems). For hardware interface use PLC’s channel 0 (for serial) or TCP/IP via EWEB modules to have as many TCP/IP devices or serial devices (via MOXA or similar product), (some limits apply based on system configurations. Com settings depend on hardware used. Contact Parijat Control ware, Inc., (PCI), for details). Connect any Modbus Master or Slave device (s) to your Logix PLC, including flow computers, analyzers, VFDs, Power Monitors, Level gauges, Smart I/O, etc. All the public/native function codes are supported. 32-Bit integers/floats as single entity are supported with byte and word level swapping.   COMPARING OUR SOLUTIONS WITH THE COMPETITION   PARIJAT (AB-Logix Modbus Master / Slave) FEATURES & BENEFITS PROSOFT (MVI56 Modbus Master/Slave) FEATURES & BENEFITS COMMON FEATURES Software solution No management PLC Logic required for most scenarios Any # of serial ports supported via TCP/IP Data storage limited by PLC memory. Over 758,000 registers. Configuration separate Dynamically alter the poll, slave, configurations with your PLC running One product for Serial/TCP Mix & match different slaves characteristics on the same drop 0-based, 1-based addressing support Status is always available No need for 3rd party hardware like Prosoft, Molex, FieldServer Uses native Rockwell hard- ware Extensive on-line debugging built-in No impact on performance for debug Modbus TCP, serial, embedded TCP supported    No special I/O area required Scan time overhead typical .2 msec (varies PLC model), about 130K PLC memory Diagnostics and Transactions - history & live Provides cont. comm. & Time efficiency/ history Hardware solution Management PLC Logic always required    Only two serial port supported Maximum of 5000 registers. Some of these are required for configuration Requires stopping and downloading a new configuration file. Different products for Serial and TCP Fixed characteristics per port    Only 0-based supported MSG instruction required for status 3rd party hardware is required    Requires a PC with HyperTerminal Impact on performance for debug. Either Serial or TCP supported, Not both in one product I/O data area required Not available    Not available Not available MASTER FEATURES Unlimited polls * User Defined (Custom) Function Codes supported (up to 128) Setup polls as FC’s or on action types Redundancy in comm. paths to slaves. (Mix serial & TCP) Unlimited slaves (via TCP/IP) * Configure multiples slaves with different properties Priority poll action that can be dynamically set up/changed by user logic Scattered read/write of contiguous data from/to slave on per poll basis Maximum of 100 polls (Some of these are reserved) User Defined (Custom) Function Codes Not Supported Only some Function Codes supported Not available    Limited to 247 * 2 slaves Not available Not available    Not available    SLAVE FEATURES Up to 19 TCP Masters may connect & communicate with any one of the slaves Maximum of 10 connections        For More Information on any of our products please contact us