8-7 safety plcs guardplc 2000 safety system 1755Cl1 the guardplc2000 cpu has one 10/100baset ethernet port for programming and configuration and two interface ports (9-pin d-shell) for serial connections. the cpu controls all functions of the guardplc 2000 system as well as communication to other systems. leds display the operating modes: run and error for the i/o modules; run, error, stop, programming and forcing for the cpu. typical applications ? perimeter guarding for robot/weld cells ? perimeter guarding for packaging machines ? entertainment industry (ride control and ski lift control) ? semi-conductor industry ? press control ? burner management ? shipping (rudder controls) features ?metal chassis ? i/o self test ? 24v dc digital i/o ? expandable number of i/o ? multiple i/o test points ? certified by tv for use in applications up to sil 3 according to iec 61508; en 954?1, category 4 ? programmed with rslogix guard software ? rs?232 port for ascii communication (read only) ? ethernet port for programming, configuration and peer-to-peer specifications user memory 500 kb application code memory 500 kb application data memory operating voltages 3.3v dc 5v dc current consumption 3.3v @ 1.5a5v @ 0.1a operating temperature 0 c to 60 c (32 f to 140 f) storage temperature -40 c to 85 c (-40 f to 185 f) operating humidity 5 to 95% (without condensation) shock operating: 30g non operating: 50g vibration operating: 2g @ 10 to 500hz weight 6.3 kg (fully equipped) dimensions (wxhxd) 255 x 285 x 210mm (10 x 11.22 x 8.26in)
8-8 safety plcs guardplc 2000 safety system chassis 1755Ca6 power supply 1755Cpb720 the guardplc chassis houses the guardplc 2000 controller, power supply, and up to six safety i/o modules. a filler module is also available for unused slots (catalogue number 1755?n2). specifications description expansion chassis for adding safety i/o modules number of slots 6 dimensions (wxhxd) 255 x 285 x 210mm (10 x 11.2 x 8.3in) weight 3.3kg (7.2lbs) mounting back-panel mounting catalogue number 1755-a6 the power supply module transforms the system supply voltage from 24v to 3.3v dc/5v dc (used for internal i/o bus). it occupies the left-most slot of the guardplc 2000 chassis. the power supply comes with a lithium battery, which has a four-year life span, that is used for back-up. four leds indicate the power supply, battery voltage, and faults.
8-9 safety plcs guardplc safety control systems overview safety-related input modules are automatically subjected to a high- grade, cyclical self-test in both the guardplc 1200 and guardplc 2000 systems during operation. these test routines are tv approved and help ensure the safe function of the respective module. when an error is detected, the application is provided with an ?0? signal, and a detailed error message is generated optionally. if there are minor failures in the module (no effect on the safety function), no user diagnostic information is generated. ? the guardplc 2000 digital i/o module has 24 inputs and 16 outputs for signals, and the inputs and outputs are electrically isolated in groups of eight. the guardplc 1200 digital i/o module has 20 inputs and 8 outputs. in case of module error, the outputs are switched to the de-energized state. ? the analog output module, which is available in the guardplc 2000 system only, the eight channels on the analog input module can be used as eight single-ended or four differential analog inputs for 0 to 20 ma. no mixing is allowed. the incoming signals are converted into an integer value with a 12-bit resolution. this value then can be used in the user program. in case of module error, the logic outputs of the modules are switched to the de-energized state. i/o hardware safety digital i/o combination module safety analog i/o modules safety counter module operating voltage signal delay (max) maximum off-state current on-state current number of inputs operating vo lt age / ty p e signal delay (max) max continuous current per output number of outputs applications catalogue number 1755? 10-30v dc guardplc 2000 on = 70 s off = 70 s guardplc 1200 on = 120 s off = 200 s 1.5ma @ 5v dc 2ma @ 10v 13ma @ 30v 24 18.4- 26.8v dc guardplc 2000 on = 70 s off = 15 s guardplc 1200 on = 15 s off = 90 s 2a (8a total per module) 16 safety applications requiring 24v dc inputs and 24v dc outputs ?ib24xob16 number of inputs/ outputs data format voltage range current range back plane current load channel update/ resolution catalogue number 1755? 4 differential or 8 single?ended inputs ? selectable 12-bit signed integer (natural binary) 10v 0-10v dc 0-20.5ma (with shunt) 150 ma/3.3v dc 400 ma/24v dc 12 bits (0-1000) if8 8 outputs 12-bit signed integer (natural binary) 10v 0-10v dc 0-20ma 150 ma/3.3v dc 400 ma / 24v dc 12 bits (0-1000) of8 inputs maximum input frequency outputs location back plane current load catalogue number 2 1 mhz 4 any unused slot 0.1a / 24v dc without load 0.8a (3.3v dc), 0.1a (5v dc) 1755-hsc ? the analog output module, which is available in the guardplc 2000 system only, has eight analog outputs with a 12-bit resolution. they are electrically isolated in groups of two outputs with a common ground. the output ranges of the module can be switched to 0 to 21 ma, 0 to 10.25v dc or -10.25 to +10.25v dc. for each channel, the module has a switch placed on the printed circuit board to switch the different output ranges. in case of module error, the outputs are switched to the de- energized state. ? the counter module has two operating modes: counter mode and decoder mode. the module has 24-bit counters with two outputs each. the counters can operate in both directions (up and down) and have a separate reset input. the input signals of 5v can be in a frequency range of 0 to 1 mhz in a guardplc 2000 system. use a pc to configure the input voltage, which can be 5v or in a range of 10 to 26.4v. in case of module error, the outputs are switched to the de-energized state. the counter can count pulses with direction and reset inputs up to 1 mhz in the guardplc 2000 system and up to 100 khz in the guardplc 1200 system. the counter module can also be used as an 8-bit gray code encoder in the guardplc 2000 system or a 6-bit gray code encoder in the guardplc 1200 system.
8-10 safety plcs guardplc safety control systems weights programming software rslogix guard software the safety aspects of the guardplc safety control system extend beyond the physical control platforms. like the controllers, programming software must also be certified to support safety integrity level 3 (sil 3) applications and is a critical component of the total safety system. the programming and configuration tool for guardplc 2000 and guardplc 1200 safety controls is rslogix guard ? software, designed to operate with microsoft windows nt v4.0 or windows 2000 operating system. since the rslogix guard software is a function block-based programming tool, there is no need for programmers to learn a cryptic programming language. using such pre-defined elements as and and or gates, numerical fu nctions, counters, and timers, programmers select and ?drag? the appropriate functions onto their workstation screen. these functions, like the controllers, have been certified for use in applications up to sil 3. subsequent programming is as easy as drawing lines to ?wire? inputs and outputs to the logical elements and making connections to hardware by way of user-defined variables or tags. the rslogix guard software is also used for system diagnosis and debugging. it can provide the status of controller cpu and i/o and can be used to obtain information about the application program. catalogue number and weight in kg (lb) ? 1754?l28bbb 0.68 (1.5) ? 1755?a6 3.3 (7.3) ? 1755?hsc 0.26 (0.57) ? 1755?ib24xob16 0.26 (0.57) ? 1755?if8 0.24 (0.53) ? 1755?l1 0.28 (0.62) ? 1755?of8 0.28 (0.62) ? 1755?pb720 0.82 (1.8) features ? save programming and configuration time using software that?s already certified for use in applications up to sil 3 ? program your safety control system using pre-defined graphical elements and a ?drag and drop? palette ? tag-based system system requirements to install rs logix guard programming software on a personal computer, you need to meet the following minimum requirements. ordering information you can install rs logix guard programming software on a local drive only (not a network). cpu processor pentium ii, 400 mhz ram 128m bytes graphic adaptor resolution: 1024 x 768 pixels (xga) hard disk space 30m bytes (minimum) for rs logix guard plus space for user defined programs operating system windows nt v4.0 or windows 2000 description catalogue number rs logix guard 1200 for guardplc 1200 packaged safety controller ? 200 variables per pou (program organization unit) 1754?pcs rs logix guard 2000 for guardplc 1200 and guardplc 2000 safety controllers ? 650 variables per pou (program organization unit) ? user-defined function blocks 1755?pcs
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