GE 90-30/20/Micro Data Formats, Default Conditions for Model 30 Output Modules, Diagnostic Data

2

Table 2-7. Model 30 I/O Modules - Continued

Catalog		Pub
Number	Description	Number
	Option Modules
IC693APU300	High Speed Counter	GFK-0293
IC693CMM311	Communications Coprocessor Module	GFK-0582
IC693PCM300	PCM, 160K Bytes (35KBytes User MegaBasic Program)	GFK-0255
IC693PCM301	PCM, 192K Bytes (47KBytes User MegaBasic Program)	GFK-0255
IC693PCM311	PCM, 640K Bytes (190KBytes User MegaBasic Program)	GFK-0255
IC693ADC311	Alphanumeric Display Coprocessor	GFK-0521
IC693BEM331	Genius Bus Controller	GFK-1034
IC693CMM301	Genius Communications Module	GFK-0412
IC693CMM302	Enhanced Genius Communications Module	GFK-0695
IC693BEM320	I/O Link Interface Module (slave)	GFK-0631
IC693BEM321	I/O Link Interface Module (master)	GFK-0823
IC693APU301	Power Mate APM Module, 1-Axis–Follower Mode	GFK-0781
IC693APU301	Power Mate APM Module, 1-Axis–Standard Mode	GFK-0840
IC693APU302	Power Mate APM Module, 2-Axis–Follower Mode	GFK-0781
IC693APU302	Power Mate APM Module, 2-Axis–Standard Mode	GFK-0840
IC693MCS001/2	Power Mate J Motion Control System (1 and 2 Axis)	GFK-1256
IC693APU305	I/O Processor Module	GFK-1028
IC693CMM321	Ethernet Communications Module	GFK-1084

I/O Data Formats

Discrete inputs and discrete outputs are stored as bits in bit cache (status table) memory. Analog input and analog output data are stored as words and are memory resident in a portion of application RAM memory allocated for that purpose.

Default Conditions for Model 30 Output Modules

At power-up, Model 30 discrete output modules default to outputs off. They will retain this default condition until the first output scan from the PLC. Analog output modules can be configured with a jumper located on the module’s removable terminal block to either default to zero or retain their last state. Also, analog output modules may be powered from an external power source so that, even though the PLC has no power, the analog output module will continue to operate in its selected default state.

Diagnostic Data

Diagnostic bits are available in %S memory that will indicate the loss of an I/O module or a mismatch in I/O configuration. Diagnostic information is not available for individual I/O points. More information on fault handling can be in Chapter 3, “Fault Explanations and Correction.”

GFK-0467K Chapter 2 System Operation 2-41